diff --git a/README.md b/README.md
index 5075712c..7af58ec3 100644
--- a/README.md
+++ b/README.md
@@ -73,31 +73,47 @@ instance.payments.all(
 ```
 
 ## Supported Resources
+- [Addon](documents/addon.md)
 
-- [Payments](https://github.com/razorpay/razorpay-node/wiki#payments)
+- [Item](documents/items.md)
 
-- [Refunds](https://github.com/razorpay/razorpay-node/wiki#refunds)
+- [Customer](documents/customer.md)
 
-- [Orders](https://github.com/razorpay/razorpay-node/wiki#orders)
+- [Token](documents/token.md)
 
-- [Customers](https://github.com/razorpay/razorpay-node/wiki#customers)
+- [Order](documents/order.md)
 
-- [Transfers](https://github.com/razorpay/razorpay-node/wiki#transfers)
+- [Payments](documents/payment.md)
 
-- [Virtual Accounts](https://github.com/razorpay/razorpay-node/wiki#virtual-accounts)
+- [Settlements](documents/settlement.md)
 
-- [Invoices](https://github.com/razorpay/razorpay-node/wiki#invoices)
+- [Refunds](documents/refund.md)
 
-- [Plans](https://github.com/razorpay/razorpay-node/wiki#plans)
+- [Invoice](documents/invoice.md)
 
-- [Subscriptions](https://github.com/razorpay/razorpay-node/wiki#subscriptions)
+- [Subscriptions](documents/subscription.md)
 
-- [Addons](https://github.com/razorpay/razorpay-node/wiki#addons)
+- [Payment Links](documents/paymentLink.md)
 
-- [Webhooks](https://github.com/razorpay/razorpay-node/wiki#webhooks)
+- [Smart Collect](documents/virtualAccount.md)
 
-- [Partner Auth](https://github.com/razorpay/razorpay-node/wiki#partner-auth)
+- [Route](documents/transfer.md)
 
+- [QR Code](documents/qrcode.md)
+
+- [Emandate](documents/emandate.md)
+
+- [Cards](documents/card.md)
+
+- [Paper NACH](documents/papernach.md)
+
+- [UPI](documents/upi.md)
+
+- [Register Emandate and Charge First Payment Together](documents/registerEmandate.md)
+
+- [Register NACH and Charge First Payment Together](documents/registerNach.md)
+
+- [Payment Verification](documents/paymentVerfication.md)
 ---
 
 ## Development
diff --git a/documents/addon.md b/documents/addon.md
new file mode 100644
index 00000000..89c09163
--- /dev/null
+++ b/documents/addon.md
@@ -0,0 +1,175 @@
+## Addons
+
+### Create an addon
+
+```js
+instance.subscriptions.createAddon('sub_I55auG9GnbsR8u',{
+  item:{
+    name:"Extra appala (papadum)",
+    amount:30000,
+    currency:"INR",
+    description:"1 extra oil fried appala with meals"
+  },
+  quantity:2
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | boolean | The subscription ID to which the add-on is being added. |
+| items*  | object | Details of the add-on you want to create. |
+| quantity*  | integer | This specifies the number of units of the add-on to be charged to the customer. |
+
+**Response:**
+```json
+{
+  "id":"ao_00000000000001",
+  "entity":"addon",
+  "item":{
+    "id":"item_00000000000001",
+    "active":true,
+    "name":"Extra appala (papadum)",
+    "description":"1 extra oil fried appala with meals",
+    "amount":30000,
+    "unit_amount":30000,
+    "currency":"INR",
+    "type":"addon",
+    "unit":null,
+    "tax_inclusive":false,
+    "hsn_code":null,
+    "sac_code":null,
+    "tax_rate":null,
+    "tax_id":null,
+    "tax_group_id":null,
+    "created_at":1581597318,
+    "updated_at":1581597318
+  },
+  "quantity":2,
+  "created_at":1581597318,
+  "subscription_id":"sub_00000000000001",
+  "invoice_id":null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all addons
+
+```js
+instance.addons.all(options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "ao_00000000000002",
+      "entity": "addon",
+      "item": {
+        "id": "item_00000000000002",
+        "active": true,
+        "name": "Extra sweet",
+        "description": "1 extra sweet of the day with meals",
+        "amount": 90000,
+        "unit_amount": 90000,
+        "currency": "INR",
+        "type": "addon",
+        "unit": null,
+        "tax_inclusive": false,
+        "hsn_code": null,
+        "sac_code": null,
+        "tax_rate": null,
+        "tax_id": null,
+        "tax_group_id": null,
+        "created_at": 1581597318,
+        "updated_at": 1581597318
+      },
+      "quantity": 1,
+      "created_at": 1581597318,
+      "subscription_id": "sub_00000000000001",
+      "invoice_id": "inv_00000000000001"
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch an addon
+
+```js
+instance.addons.fetch(addonId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description     |
+|-----------------|---------|------------------------------------|
+| addonId*          | string | addon id to be fetched            |
+
+**Response:**
+```json
+{
+  "id":"ao_00000000000001",
+  "entity":"addon",
+  "item":{
+    "id":"item_00000000000001",
+    "active":true,
+    "name":"Extra appala (papadum)",
+    "description":"1 extra oil fried appala with meals",
+    "amount":30000,
+    "unit_amount":30000,
+    "currency":"INR",
+    "type":"addon",
+    "unit":null,
+    "tax_inclusive":false,
+    "hsn_code":null,
+    "sac_code":null,
+    "tax_rate":null,
+    "tax_id":null,
+    "tax_group_id":null,
+    "created_at":1581597318,
+    "updated_at":1581597318
+  },
+  "quantity":2,
+  "created_at":1581597318,
+  "subscription_id":"sub_00000000000001",
+  "invoice_id":null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete an addon
+
+```js
+instance.addons.delete(addonId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| addonId*          | string | addon id to be deleted |
+
+**Response:**
+```json
+[]
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/subscriptions/#add-ons)**
\ No newline at end of file
diff --git a/documents/card.md b/documents/card.md
new file mode 100644
index 00000000..3bc3e59c
--- /dev/null
+++ b/documents/card.md
@@ -0,0 +1,566 @@
+## Cards
+
+### Create customer
+```js
+instance.customers.create({
+  name: "Gaurav Kumar",
+  email: "gaurav.kumar@example.com",
+  contact: "9123456780",
+  fail_existing: "0",
+  notes:{
+    note_key_1: "September",
+    note_key_2: "Make it so."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| fail_existing | string | If a customer with the same details already exists, the request throws an exception by default. Possible value is `0` or `1`|
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create Order
+
+```js
+instance.orders.create({
+   "amount":100,
+   "currency":"INR",
+   "customer_id":"cust_4xbQrmEoA5WJ01",
+   "method":"card",
+   "token":{
+      "max_amount":5000,
+      "expire_at":2709971120,
+      "frequency":"monthly"
+   },
+   "receipt":"Receipt No. 1",
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey... decaf."
+   }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| customerId*   | string      | The id of the customer to be fetched |
+| receipt      | string  | Your system order reference id.  |
+| method*      | string  | Payment method used to make the registration transaction. Possible value is `card`.  |
+| token  | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/cards/authorization-transaction/#112-create-an-order) are supported |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":100,
+   "amount_paid":0,
+   "amount_due":100,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "method":"card",
+   "description":null,
+   "customer_id":"cust_4xbQrmEoA5WJ01",
+   "token":{
+      "max_amount":5000,
+      "expire_at":2709971120,
+      "frequency":"monthly"
+   },
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1565172642
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscriptions.createRegistrationLink({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  type: "link",
+  amount: 100,
+  currency: "INR",
+  description: "Registration Link for Gaurav Kumar",
+  subscription_registration: {
+    method: "card",
+    max_amount: 500,
+    expire_at: 1609423824
+  },
+  receipt: "Receipt No. 1",
+  email_notify: 1,
+  sms_notify: 1,
+  expire_by: 1580479824,
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey... decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customer   | object      | Details of the customer to whom the registration link will be sent. |
+| type*  | string | the value is `link`. |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| description*  | string      | A brief description of the payment.   |
+| subscription_registration   | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/cards/authorization-transaction/#121-create-a-registration-link) are supported  |
+| receipt      | string  | Your system order reference id.  |
+| sms_notify  | boolean  | SMS notifications are to be sent by Razorpay (default : 1)  |
+| email_notify | boolean  | Email notifications are to be sent by Razorpay (default : 1)  |
+| expire_by    | integer | The timestamp, in Unix format, till when the customer can make the authorization payment. |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+  "id": "inv_FHrXGIpd3N17DX",
+  "entity": "invoice",
+  "receipt": "Receipt No. 24",
+  "invoice_number": "Receipt No. 24",
+  "customer_id": "cust_BMB3EwbqnqZ2EI",
+  "customer_details": {
+    "id": "cust_BMB3EwbqnqZ2EI",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9123456780",
+    "gstin": null,
+    "billing_address": null,
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9123456780"
+  },
+  "order_id": "order_FHrXGJNngJyEAe",
+  "line_items": [],
+  "payment_id": null,
+  "status": "issued",
+  "expire_by": 4102444799,
+  "issued_at": 1595491014,
+  "paid_at": null,
+  "cancelled_at": null,
+  "expired_at": null,
+  "sms_status": "pending",
+  "email_status": "pending",
+  "date": 1595491014,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 100,
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "amount": 100,
+  "amount_paid": 0,
+  "amount_due": 100,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "Registration Link for Gaurav Kumar",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/VSriCfn",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "link",
+  "group_taxes_discounts": false,
+  "created_at": 1595491014,
+  "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Create an order to charge the customer
+
+```js
+instance.orders.create({
+  amount: 100,
+  currency: "INR",
+  customer_id: "cust_4xbQrmEoA5WJ01",
+  method: "card",
+  token: {
+    max_amount: 5000,
+    expire_at: 2709971120,
+    frequency: "monthly"
+  },
+  receipt: "Receipt No. 1",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey... decaf."
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| customerId*   | string      | The id of the customer to be fetched |
+| method*      | string  | Payment method used to make the registration transaction. Possible value is `card`.  |
+| receipt      | string  | Your system order reference id.  |
+| token  | array  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/cards/subsequent-payments/#31-create-an-order-to-charge-the-customer) are supported |
+| notes | array  | A key-value pair  |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":100,
+   "amount_paid":0,
+   "amount_due":100,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "method":"card",
+   "description":null,
+   "customer_id":"cust_4xbQrmEoA5WJ01",
+   "token":{
+      "max_amount":5000,
+      "expire_at":2709971120,
+      "frequency":"monthly"
+   },
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1565172642
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Create a recurring payment
+
+```js
+instance.payment.createRecurring({
+  email: "gaurav.kumar@example.com",
+  contact: 9123456789,
+  amount: 1000,
+  currency: "INR",
+  order_id: "order_IDts8IQBJT40aQ",
+  customer_id: "cust_Hwq7Ba6TDXl1ga",
+  token: "token_1Aa00000000001",
+  recurring: 1,
+  description: "Creating recurring payment for Gaurav Kumar",
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*   | string      | The customer's email address |
+| contact*   | string      | The customer's phone number |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| orderId*   | string      | The id of the order to be fetched |
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+| recurring*   | boolean      | Possible values is `0` or `1` |
+| description  | string      | A brief description of the payment.   |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/cards/authorization-transaction/#113-create-an-authorization-payment) for authorization payment
+
+-------------------------------------------------------------------------------------------------------
+
+## Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId,medium)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+| medium*   | string      | Possible values are `sms` or `email` |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Cancel registration link
+
+```js
+instance.invoices.cancel(invoiceId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+
+**Response:**
+```json
+{
+    "id": "inv_FHrfRupD2ouKIt",
+    "entity": "invoice",
+    "receipt": "Receipt No. 1",
+    "invoice_number": "Receipt No. 1",
+    "customer_id": "cust_BMB3EwbqnqZ2EI",
+    "customer_details": {
+        "id": "cust_BMB3EwbqnqZ2EI",
+        "name": "Gaurav Kumar",
+        "email": "gaurav.kumar@example.com",
+        "contact": "9123456780",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": "Gaurav Kumar",
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "9123456780"
+    },
+    "order_id": "order_FHrfRw4TZU5Q2L",
+    "line_items": [],
+    "payment_id": null,
+    "status": "cancelled",
+    "expire_by": 4102444799,
+    "issued_at": 1595491479,
+    "paid_at": null,
+    "cancelled_at": 1595491488,
+    "expired_at": null,
+    "sms_status": "sent",
+    "email_status": "sent",
+    "date": 1595491479,
+    "terms": null,
+    "partial_payment": false,
+    "gross_amount": 100,
+    "tax_amount": 0,
+    "taxable_amount": 0,
+    "amount": 100,
+    "amount_paid": 0,
+    "amount_due": 100,
+    "currency": "INR",
+    "currency_symbol": "₹",
+    "description": "Registration Link for Gaurav Kumar",
+    "notes": {
+        "note_key 1": "Beam me up Scotty",
+        "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "comment": null,
+    "short_url": "https://rzp.io/i/QlfexTj",
+    "view_less": true,
+    "billing_start": null,
+    "billing_end": null,
+    "type": "link",
+    "group_taxes_discounts": false,
+    "created_at": 1595491480,
+    "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Fetch token by payment id
+
+```js
+instance.payments.fetch(paymentId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched |
+
+**Response:**
+```json
+{
+  "id": "pay_FHfqtkRzWvxky4",
+  "entity": "payment",
+  "amount": 100,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_FHfnswDdfu96HQ",
+  "invoice_id": null,
+  "international": false,
+  "method": "card",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": null,
+  "card_id": "card_F0zoXUp4IPPGoI",
+  "bank": null,
+  "wallet": null,
+  "vpa": null,
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_FHfn3rIiM1Z8nr",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "auth_code": "541898"
+  },
+  "created_at": 1595449871
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Fetch tokens by customer id
+
+```js
+instance.customer.fetchTokens(customerId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+   "entity":"collection",
+   "count":1,
+   "items":[
+      {
+         "id":"token_HouA2OQR5Z2jTL",
+         "entity":"token",
+         "token":"2JPRk664pZHUWG",
+         "bank":null,
+         "wallet":null,
+         "method":"card",
+         "card":{
+            "entity":"card",
+            "name":"Gaurav Kumar",
+            "last4":"8950",
+            "network":"Visa",
+            "type":"credit",
+            "issuer":"STCB",
+            "international":false,
+            "emi":false,
+            "sub_type":"consumer",
+            "expiry_month":12,
+            "expiry_year":2021,
+            "flows":{
+               "otp":true,
+               "recurring":true
+            }
+         },
+         "recurring":true,
+         "recurring_details":{
+            "status":"confirmed",
+            "failure_reason":null
+         },
+         "auth_type":null,
+         "mrn":null,
+         "used_at":1629779657,
+         "created_at":1629779657,
+         "expired_at":1640975399,
+         "dcc_enabled":false,
+         "billing_address":null
+      }
+   ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch card
+
+```js
+instance.cards.fetch(cardId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| cardId*          | string | card id to be fetched                                               |
+
+-------------------------------------------------------------------------------------------------------
+
+## Delete tokens
+
+```js
+instance.customers.deleteToken(customerId,tokenId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/cards/authorization-transaction/)**
\ No newline at end of file
diff --git a/documents/customer.md b/documents/customer.md
new file mode 100644
index 00000000..6e470078
--- /dev/null
+++ b/documents/customer.md
@@ -0,0 +1,149 @@
+## Customer
+
+### Create customer
+```js
+instance.customer.create({
+  name: "Gaurav Kumar",
+  contact: 9123456780,
+  email: "gaurav.kumar@example.com",
+  fail_existing: 0,
+  gstin: "29XAbbA4369J1PA",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id" : "cust_1Aa00000000004",
+  "entity": "customer",
+  "name" : "Gaurav Kumar",
+  "email" : "gaurav.kumar@example.com",
+  "contact" : "9123456780",
+  "gstin": "29XAbbA4369J1PA",
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "created_at ": 1234567890
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Edit customer
+```js
+instance.customers.edit(customerId,{
+  name: "Gaurav Kumar",
+  email: "Gaurav.Kumar@example.com",
+  contact: 9000000000
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be updated  |
+| email        | string      | Email of the customer                       |
+| name        | string      | Name of the customer                        |
+| contact      | string      | Contact number of the customer              |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all customer
+```js
+instance.customers.all(options)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity":"collection",
+  "count":1,
+  "items":[
+    {
+      "id":"cust_1Aa00000000001",
+      "entity":"customer",
+      "name":"Gaurav Kumar",
+      "email":"gaurav.kumar@example.com",
+      "contact":"9876543210",
+      "gstin":"29XAbbA4369J1PA",
+      "notes":{
+        "note_key_1":"September",
+        "note_key_2":"Make it so."
+      },
+      "created_at ":1234567890
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a customer
+```js
+instance.customers.fetch(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched  |
+
+**Response:**
+```json
+{
+  "id" : "cust_1Aa00000000001",
+  "entity": "customer",
+  "name" : "Saurav Kumar",
+  "email" : "Saurav.kumar@example.com",
+  "contact" : "+919000000000",
+  "gstin":"29XAbbA4369J1PA",
+  "notes" : [],
+  "created_at ": 1234567890
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/customers/)**
\ No newline at end of file
diff --git a/documents/emandate.md b/documents/emandate.md
new file mode 100644
index 00000000..4c2645af
--- /dev/null
+++ b/documents/emandate.md
@@ -0,0 +1,459 @@
+## Emandates
+
+### Create customer
+```js
+instance.customer.create({
+  name: "Gaurav Kumar",
+  contact: 9123456780,
+  email: "gaurav.kumar@example.com",
+  fail_existing: 0,
+  gstin: "29XAbbA4369J1PA",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create order
+
+```js
+instance.orders.create({
+  amount: 0,
+  currency: "INR",
+  method: "emandate",
+  customer_id: "cust_1Aa00000000001",
+  receipt: "Receipt No. 1",
+  notes: {
+    notes_key_1: "Beam me up Scotty",
+    notes_key_2: "Engage"
+  },
+  token: {
+    auth_type: "netbanking",
+    max_amount: 9999900,
+    expire_at: 4102444799,
+    notes: {
+      notes_key_1: "Tea, Earl Grey, Hot",
+      notes_key_2: "Tea, Earl Grey… decaf."
+    },
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 1121431121541121,
+      account_type: "savings",
+      ifsc_code: "HDFC0000001"
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| method*        | string  | The authorization method. In this case the value will be `emandate`                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+| token           | object  | A key-value pair                                                             |
+
+**Response:**
+Create order response please click [here](https://razorpay.com/docs/api/recurring-payments/emandate/authorization-transaction/#112-create-an-order)
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/emandate/authorization-transaction/#113-create-an-authorization-payment) for authorization payment
+
+-------------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscriptions.createRegistrationLink({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  type: "link",
+  amount: 0,
+  currency: "INR",
+  description: "12 p.m. Meals",
+  subscription_registration: {
+    method: "emandate",
+    auth_type: "netbanking",
+    expire_at: 1580480689,
+    max_amount: 50000,
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    }
+  },
+  receipt: "Receipt no. 1",
+  expire_by: 1880480689,
+  sms_notify: 1,
+  email_notify: 1,
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customer          | object | Details of the customer to whom the registration link will be sent.           |
+| type*        | string  | In this case, the value is `link`.                      |
+| currency*        | string  | The 3-letter ISO currency code for the payment. Currently, only `INR` is supported. |
+| amount*         | integer  | The payment amount in the smallest currency sub-unit.                 |
+| description*    | string  | A description that appears on the hosted page. For example, `12:30 p.m. Thali meals (Gaurav Kumar`).                                                             |
+| subscription_registration           | object  | Details of the authorization payment.                      |
+| notes           | object  | A key-value pair                                                             |
+
+**Response:**
+Create registration link response please click [here](https://razorpay.com/docs/api/recurring-payments/emandate/authorization-transaction/#121-create-a-registration-link)
+-------------------------------------------------------------------------------------------------------
+
+### Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId, medium)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be notified                         |
+| medium*          | string | `sms`/`email`, Medium through which notification should be sent.                         |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Cancel a registration link
+
+```js
+instance.invoices.cancel(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be cancelled                         |
+
+**Response:**
+```json
+{
+  "id": "inv_FHrfRupD2ouKIt",
+  "entity": "invoice",
+  "receipt": "Receipt No. 1",
+  "invoice_number": "Receipt No. 1",
+  "customer_id": "cust_BMB3EwbqnqZ2EI",
+  "customer_details": {
+    "id": "cust_BMB3EwbqnqZ2EI",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9123456780",
+    "gstin": null,
+    "billing_address": null,
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9123456780"
+  },
+  "order_id": "order_FHrfRw4TZU5Q2L",
+  "line_items": [],
+  "payment_id": null,
+  "status": "cancelled",
+  "expire_by": 4102444799,
+  "issued_at": 1595491479,
+  "paid_at": null,
+  "cancelled_at": 1595491488,
+  "expired_at": null,
+  "sms_status": "sent",
+  "email_status": "sent",
+  "date": 1595491479,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 100,
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "amount": 100,
+  "amount_paid": 0,
+  "amount_due": 100,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "Registration Link for Gaurav Kumar",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/QlfexTj",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "link",
+  "group_taxes_discounts": false,
+  "created_at": 1595491480,
+  "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch token by payment ID
+
+```js
+instance.payments.fetch(paymentId)
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| paymentId* | string | Id of the payment to be retrieved |
+
+**Response:**
+```json
+{
+  "id": "pay_FHf9a7AO0iXM9I",
+  "entity": "payment",
+  "amount": 0,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_FHf9OwSeyetnKC",
+  "invoice_id": "inv_FHf9P2hhXEti7i",
+  "international": false,
+  "method": "emandate",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": null,
+  "card_id": null,
+  "bank": "HDFC",
+  "wallet": null,
+  "vpa": null,
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_FHf9aAZR9hWJkq",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {},
+  "created_at": 1595447410
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch tokens by customer ID
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "token_FHf94Uym9tdYFJ",
+      "entity": "token",
+      "token": "2wDPM7VAlXtjAR",
+      "bank": "HDFC",
+      "wallet": null,
+      "method": "emandate",
+      "vpa": null,
+      "recurring": true,
+      "recurring_details": {
+        "status": "confirmed",
+        "failure_reason": null
+      },
+      "auth_type": "netbanking",
+      "mrn": null,
+      "used_at": 1595447381,
+      "created_at": 1595447381,
+      "bank_details": {
+        "beneficiary_name": "Gaurav Kumar",
+        "account_number": "1121431121541121",
+        "ifsc": "HDFC0000001",
+        "account_type": "savings"
+      },
+      "max_amount": 9999900,
+      "expired_at": 1689971140,
+      "dcc_enabled": false
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete token
+
+```js
+instance.customers.deleteToken(customerId, tokenId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+| tokenId*          | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an order to charge the customer
+
+```js
+instance.order.create({
+  "amount":1000,
+  "currency":"INR",
+  "receipt":"Receipt No. 1",
+  "notes": {
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":1000,
+   "amount_paid":0,
+   "amount_due":1000,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1579782776
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create a Recurring Payment
+
+```js
+instance.payment.createRecurringPayment({
+  "email": "gaurav.kumar@example.com",
+  "contact": "9123456789",
+  "amount": 1000,
+  "currency": "INR",
+  "order_id": "order_1Aa00000000002",
+  "customer_id": "cust_1Aa00000000001",
+  "token": "token_1Aa00000000001",
+  "recurring": "1",
+  "description": "Creating recurring payment for Gaurav Kumar",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*          | string | The customer's email address.                                               |
+| contact*        | string  | The customer's phone number.                      |
+| amount*         | integer  | The amount you want to charge your customer. This should be the same as the amount in the order.                        |
+| currency*        | string  | The 3-letter ISO currency code for the payment. Currently, only `INR` is supported. |
+| order_id*        | string  | The unique identifier of the order created. |
+| customer_id*        | string  | The `customer_id` for the customer you want to charge.  |
+| token*        | string  | The `token_id` generated when the customer successfully completes the authorization payment. Different payment instruments for the same customer have different `token_id`.|
+| recurring*        | string  | Determines if recurring payment is enabled or not. Possible values:<br>* `1` - Recurring is enabled.* `0` - Recurring is not enabled.|
+| description*        | string  | A user-entered description for the payment.|
+| notes*        | object  | Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/emandate/authorization-transaction/)**
\ No newline at end of file
diff --git a/documents/fund.md b/documents/fund.md
new file mode 100644
index 00000000..773bf1db
--- /dev/null
+++ b/documents/fund.md
@@ -0,0 +1,77 @@
+## Funds
+
+### Create a fund account
+```js
+instance.fundAccount.create({
+  "customer_id":"cust_Aa000000000001",
+  "account_type":"bank_account",
+  "bank_account":{
+    "name":"Gaurav Kumar",
+    "account_number":"11214311215411",
+    "ifsc":"HDFC0000053"
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched  |
+| account_type* | string      | The bank_account to be linked to the customer ID  |
+| bank_account* | object      | A key-value pair  |
+
+**Response:**
+```json
+{
+  "id":"fa_Aa00000000001",
+  "entity":"fund_account",
+  "customer_id":"cust_Aa000000000001",
+  "account_type":"bank_account",
+  "bank_account":{
+    "name":"Gaurav Kumar",
+    "account_number":"11214311215411",
+    "ifsc":"HDFC0000053",
+    "bank_name":"HDFC Bank"
+  },
+  "active":true,
+  "created_at":1543650891
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all fund accounts
+
+```js
+instance.fundAccount.fetch(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched  |
+
+**Response:**
+```json
+{
+  "id":"fa_Aa00000000001",
+  "entity":"fund_account",
+  "customer_id":"cust_Aa000000000001",
+  "account_type":"bank_account",
+  "bank_account":{
+    "name":"Gaurav Kumar",
+    "account_number":"11214311215411",
+    "ifsc":"HDFC0000053",
+    "bank_name":"HDFC Bank"
+  },
+  "active":true,
+  "created_at":1543650891
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/payments/customers/customer-fund-account-api/)**
\ No newline at end of file
diff --git a/documents/invoice.md b/documents/invoice.md
new file mode 100644
index 00000000..58af35fe
--- /dev/null
+++ b/documents/invoice.md
@@ -0,0 +1,523 @@
+## Invoices
+
+### Create Invoice
+
+Request #1
+In this example, an invoice is created using the customer and item details. Here, the customer and item are created while creating the invoice.
+```js
+instance.orders.create({
+  type: "invoice",
+  description: "Invoice for the month of January 2020",
+  partial_payment: true,
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 9999999999,
+    email: "gaurav.kumar@example.com",
+    billing_address: {
+      line1: "Ground & 1st Floor, SJR Cyber Laskar",
+      line2: "Hosur Road",
+      zipcode: 560068,
+      city: "Bengaluru",
+      state: "Karnataka",
+      country: "in"
+    },
+    shipping_address: {
+      line1: "Ground & 1st Floor, SJR Cyber Laskar",
+      line2: "Hosur Road",
+      zipcode: 560068,
+      city: "Bengaluru",
+      state: "Karnataka",
+      country: "in"
+    }
+  },
+  line_items: [
+    {
+      name: "Master Cloud Computing in 30 Days",
+      description: "Book by Ravena Ravenclaw",
+      amount: 399,
+      currency: "USD",
+      quantity: 1
+    }
+  ],
+  sms_notify: 1,
+  email_notify: 1,
+  currency: "USD",
+  expire_by: 1589765167
+})
+```
+
+Request #2
+In this example, an invoice is created using existing `customer_id` and `item_id`
+```js
+instance.invoice.create({
+  type: "invoice",
+  date: 1589994898,
+  customer_id: "cust_E7q0trFqXgExmT"
+  line_items: [
+    {
+      "item_id": "item_DRt61i2NnL8oy6"
+    }
+  ]
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|type*          | string | entity type (here its invoice)                                               |
+|description        | string  | A brief description of the invoice.                      |
+|customer_id           | string  | customer id for which invoice need be raised                     |
+|customer           | object  | customer details in a object format                     |
+
+**Response:**
+For create invoice response please click [here](https://razorpay.com/docs/api/invoices/#create-an-invoice)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all invoices
+
+```js
+instance.invoices.all()
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|type          | string | entity type (here its invoice)                                               |
+|payment_id        | string  | The unique identifier of the payment made by the customer against the invoice.                      |
+|customer_id           | string  | The unique identifier of the customer.                     |
+|receipt           | string  |  The unique receipt number that you entered for internal purposes.                     |
+
+**Response:**
+For fetch all invoice response please click [here](https://razorpay.com/docs/api/invoices/#fetch-multiple-invoices)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch invoice
+
+```js
+instance.invoices.fetch(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be fetched                         |
+
+**Response:**
+```json
+{
+  "id": "inv_E7q0tqkxBRzdau",
+  "entity": "invoice",
+  "receipt": null,
+  "invoice_number": null,
+  "customer_id": "cust_E7q0trFqXgExmT",
+  "customer_details": {
+    "id": "cust_E7q0trFqXgExmT",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9999999999",
+    "gstin": null,
+    "billing_address": {
+      "id": "addr_E7q0ttqh4SGhAC",
+      "type": "billing_address",
+      "primary": true,
+      "line1": "Ground & 1st Floor, SJR Cyber Laskar",
+      "line2": "Hosur Road",
+      "zipcode": "560068",
+      "city": "Bengaluru",
+      "state": "Karnataka",
+      "country": "in"
+    },
+    "shipping_address": {
+      "id": "addr_E7q0ttKwVA1h2V",
+      "type": "shipping_address",
+      "primary": true,
+      "line1": "Ground & 1st Floor, SJR Cyber Laskar",
+      "line2": "Hosur Road",
+      "zipcode": "560068",
+      "city": "Bengaluru",
+      "state": "Karnataka",
+      "country": "in"
+    },
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9999999999"
+  },
+  "order_id": "order_E7q0tvRpC0WJwg",
+  "line_items": [
+    {
+      "id": "li_E7q0tuPNg84VbZ",
+      "item_id": null,
+      "ref_id": null,
+      "ref_type": null,
+      "name": "Master Cloud Computing in 30 Days",
+      "description": "Book by Ravena Ravenclaw",
+      "amount": 399,
+      "unit_amount": 399,
+      "gross_amount": 399,
+      "tax_amount": 0,
+      "taxable_amount": 399,
+      "net_amount": 399,
+      "currency": "INR",
+      "type": "invoice",
+      "tax_inclusive": false,
+      "hsn_code": null,
+      "sac_code": null,
+      "tax_rate": null,
+      "unit": null,
+      "quantity": 1,
+      "taxes": []
+    }
+  ],
+  "payment_id": null,
+  "status": "issued",
+  "expire_by": 1589765167,
+  "issued_at": 1579765167,
+  "paid_at": null,
+  "cancelled_at": null,
+  "expired_at": null,
+  "sms_status": "pending",
+  "email_status": "pending",
+  "date": 1579765167,
+  "terms": null,
+  "partial_payment": true,
+  "gross_amount": 399,
+  "tax_amount": 0,
+  "taxable_amount": 399,
+  "amount": 399,
+  "amount_paid": 0,
+  "amount_due": 399,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "Invoice for the month of January 2020",
+  "notes": [],
+  "comment": null,
+  "short_url": "https://rzp.io/i/2wxV8Xs",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "invoice",
+  "group_taxes_discounts": false,
+  "created_at": 1579765167
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Update invoice
+
+```js
+instance.invoices.edit(invoiceId,{
+  line_items: [
+    {
+      id: "li_DAweOizsysoJU6",
+      name: "Book / English August - Updated name and quantity",
+      quantity: 1
+    },
+    {
+      name: "Book / A Wild Sheep Chase",
+      amount: 200,
+      currency: "INR",
+      quantity: 1
+    }
+  ],
+  notes: {
+    "updated-key": "An updated note."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be fetched                         |
+
+**Response:**
+For update invoice response please click [here](https://razorpay.com/docs/api/invoices/#update-an-invoice)
+
+-------------------------------------------------------------------------------------------------------
+
+### Issue an invoice
+
+```js
+instance.invoices.issue(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be issued                         |
+
+**Response:**
+```json
+{
+  "id": "inv_DAweOiQ7amIUVd",
+  "entity": "invoice",
+  "receipt": "#0961",
+  "invoice_number": "#0961",
+  "customer_id": "cust_DAtUWmvpktokrT",
+  "customer_details": {
+    "id": "cust_DAtUWmvpktokrT",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9977886633",
+    "gstin": null,
+    "billing_address": {
+      "id": "addr_DAtUWoxgu91obl",
+      "type": "billing_address",
+      "primary": true,
+      "line1": "318 C-Wing, Suyog Co. Housing Society Ltd.",
+      "line2": "T.P.S Road, Vazira, Borivali",
+      "zipcode": "400092",
+      "city": "Mumbai",
+      "state": "Maharashtra",
+      "country": "in"
+    },
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9977886633"
+  },
+  "order_id": "order_DBG3P8ZgDd1dsG",
+  "line_items": [
+    {
+      "id": "li_DAweOizsysoJU6",
+      "item_id": null,
+      "name": "Book / English August - Updated name and quantity",
+      "description": "150 points in Quidditch",
+      "amount": 400,
+      "unit_amount": 400,
+      "gross_amount": 400,
+      "tax_amount": 0,
+      "taxable_amount": 400,
+      "net_amount": 400,
+      "currency": "INR",
+      "type": "invoice",
+      "tax_inclusive": false,
+      "hsn_code": null,
+      "sac_code": null,
+      "tax_rate": null,
+      "unit": null,
+      "quantity": 1,
+      "taxes": []
+    },
+    {
+      "id": "li_DAwjWQUo07lnjF",
+      "item_id": null,
+      "name": "Book / A Wild Sheep Chase",
+      "description": null,
+      "amount": 200,
+      "unit_amount": 200,
+      "gross_amount": 200,
+      "tax_amount": 0,
+      "taxable_amount": 200,
+      "net_amount": 200,
+      "currency": "INR",
+      "type": "invoice",
+      "tax_inclusive": false,
+      "hsn_code": null,
+      "sac_code": null,
+      "tax_rate": null,
+      "unit": null,
+      "quantity": 1,
+      "taxes": []
+    }
+  ],
+  "payment_id": null,
+  "status": "issued",
+  "expire_by": 1567103399,
+  "issued_at": 1566974805,
+  "paid_at": null,
+  "cancelled_at": null,
+  "expired_at": null,
+  "sms_status": null,
+  "email_status": null,
+  "date": 1566891149,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 600,
+  "tax_amount": 0,
+  "taxable_amount": 600,
+  "amount": 600,
+  "amount_paid": 0,
+  "amount_due": 600,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "This is a test invoice.",
+  "notes": {
+    "updated-key": "An updated note."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/K8Zg72C",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "invoice",
+  "group_taxes_discounts": false,
+  "created_at": 1566906474,
+  "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete an invoice
+
+```js
+instance.invoice.delete(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be deleted                         |
+
+**Response:**
+```
+[]
+```
+-------------------------------------------------------------------------------------------------------
+
+### Cancel an invoice
+
+```js
+instance.invoices.cancel(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be cancelled                         |
+
+**Response:**
+```json
+{
+  "id": "inv_E7q0tqkxBRzdau",
+  "entity": "invoice",
+  "receipt": null,
+  "invoice_number": null,
+  "customer_id": "cust_E7q0trFqXgExmT",
+  "customer_details": {
+    "id": "cust_E7q0trFqXgExmT",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9972132594",
+    "gstin": null,
+    "billing_address": {
+      "id": "addr_E7q0ttqh4SGhAC",
+      "type": "billing_address",
+      "primary": true,
+      "line1": "Ground & 1st Floor, SJR Cyber Laskar",
+      "line2": "Hosur Road",
+      "zipcode": "560068",
+      "city": "Bengaluru",
+      "state": "Karnataka",
+      "country": "in"
+    },
+    "shipping_address": {
+      "id": "addr_E7q0ttKwVA1h2V",
+      "type": "shipping_address",
+      "primary": true,
+      "line1": "Ground & 1st Floor, SJR Cyber Laskar",
+      "line2": "Hosur Road",
+      "zipcode": "560068",
+      "city": "Bengaluru",
+      "state": "Karnataka",
+      "country": "in"
+    },
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9972132594"
+  },
+  "order_id": "order_E7q0tvRpC0WJwg",
+  "line_items": [
+    {
+      "id": "li_E7q0tuPNg84VbZ",
+      "item_id": null,
+      "ref_id": null,
+      "ref_type": null,
+      "name": "Master Cloud Computing in 30 Days",
+      "description": "Book by Ravena Ravenclaw",
+      "amount": 399,
+      "unit_amount": 399,
+      "gross_amount": 399,
+      "tax_amount": 0,
+      "taxable_amount": 399,
+      "net_amount": 399,
+      "currency": "INR",
+      "type": "invoice",
+      "tax_inclusive": false,
+      "hsn_code": null,
+      "sac_code": null,
+      "tax_rate": null,
+      "unit": null,
+      "quantity": 1,
+      "taxes": []
+    }
+  ],
+  "payment_id": null,
+  "status": "cancelled",
+  "expire_by": null,
+  "issued_at": 1579765167,
+  "paid_at": null,
+  "cancelled_at": 1579768206,
+  "expired_at": null,
+  "sms_status": "sent",
+  "email_status": "sent",
+  "date": 1579765167,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 399,
+  "tax_amount": 0,
+  "taxable_amount": 399,
+  "amount": 399,
+  "amount_paid": 0,
+  "amount_due": 399,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": null,
+  "notes": [],
+  "comment": null,
+  "short_url": "https://rzp.io/i/2wxV8Xs",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "invoice",
+  "group_taxes_discounts": false,
+  "created_at": 1579765167,
+  "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Send notification
+
+```js
+instance.invoices.notifyBy(invoiceId,medium)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be notified                         |
+| medium*          | string | `sms`/`email`, Medium through which notification should be sent.                         |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/invoices)**
\ No newline at end of file
diff --git a/documents/order.md b/documents/order.md
new file mode 100644
index 00000000..e81351c4
--- /dev/null
+++ b/documents/order.md
@@ -0,0 +1,212 @@
+## Orders
+
+### Create order
+
+```js
+instance.orders.create({
+  amount: 50000,
+  currency: "INR",
+  receipt: "receipt#1",
+  notes: {
+    key1: "value3",
+    key2: "value2"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+
+**Response:**
+
+```json
+{
+  "id": "order_EKwxwAgItmmXdp",
+  "entity": "order",
+  "amount": 50000,
+  "amount_paid": 0,
+  "amount_due": 50000,
+  "currency": "INR",
+  "receipt": "receipt#1",
+  "offer_id": null,
+  "status": "created",
+  "attempts": 0,
+  "notes": [],
+  "created_at": 1582628071
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all orders
+
+```js
+instance.orders.all(option)
+```
+
+**Parameters**
+
+| Name       | Type      | Description                                                  |
+|------------|-----------|--------------------------------------------------------------|
+| from       | timestamp | timestamp after which the orders were created              |
+| to         | timestamp | timestamp before which the orders were created             |
+| count      | integer   | number of orders to fetch (default: 10)                    |
+| skip       | integer   | number of orders to be skipped (default: 0)                |
+| authorized | boolean   | Orders for which orders are currently in authorized state. |
+| receipt    | string    | Orders with the provided value for receipt.                  |
+
+**Response:**
+
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "order_EKzX2WiEWbMxmx",
+      "entity": "order",
+      "amount": 1234,
+      "amount_paid": 0,
+      "amount_due": 1234,
+      "currency": "INR",
+      "receipt": "Receipt No. 1",
+      "offer_id": null,
+      "status": "created",
+      "attempts": 0,
+      "notes": [],
+      "created_at": 1582637108
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch particular order
+
+```js
+instance.orders.fetch(orderId)
+```
+**Parameters**
+
+| Name     | Type   | Description                         |
+|----------|--------|-------------------------------------|
+| orderId* | string | The id of the order to be fetched |
+
+**Response:**
+
+```json
+{
+  "id":"order_DaaS6LOUAASb7Y",
+  "entity":"order",
+  "amount":2200,
+  "amount_paid":0,
+  "amount_due":2200,
+  "currency":"INR",
+  "receipt":"Receipt #211",
+  "status":"attempted",
+  "attempts":1,
+  "notes":[],
+  "created_at":1572505143
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch payments for an order
+
+```js
+instance.orders.fetchPayments(orderId)
+```
+**Parameters**
+
+| Name     | Type   | Description                         |
+|----------|--------|-------------------------------------|
+| orderId* | string | The id of the order to be retrieve payment info |
+
+**Response:**
+```json
+{
+  "entity":"collection",
+  "count":1,
+  "items":[
+    {
+      "id":"pay_DaaSOvhgcOfzgR",
+      "entity":"payment",
+      "amount":2200,
+      "currency":"INR",
+      "status":"captured",
+      "order_id":"order_DaaS6LOUAASb7Y",
+      "invoice_id":null,
+      "international":false,
+      "method":"card",
+      "amount_refunded":0,
+      "refund_status":null,
+      "captured":true,
+      "description":"Beans in every imaginable flavour",
+      "card_id":"card_DZon6fd8J3IcA2",
+      "bank":null,
+      "wallet":null,
+      "vpa":null,
+      "email":"gaurav.kumar@example.com",
+      "contact":"+919999999988",
+      "notes":[],
+      "fee":44,
+      "tax":0,
+      "error_code":null,
+      "error_description":null,
+      "created_at":1572505160
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Update order
+
+```js
+instance.orders.edit({
+  "notes": {
+    "key1": "value3",
+    "key2": "value2"
+  }
+})
+```
+**Parameters**
+
+| Name     | Type   | Description                         |
+|----------|--------|-------------------------------------|
+| orderId* | string | The id of the order to be retrieve payment info |
+| notes*   | object  | A key-value pair                    |
+
+**Response:**
+```json
+{
+  "id":"order_DaaS6LOUAASb7Y",
+  "entity":"order",
+  "amount":2200,
+  "amount_paid":0,
+  "amount_due":2200,
+  "currency":"INR",
+  "receipt":"Receipt #211",
+  "offer_id":null,
+  "status":"attempted",
+  "attempts":1,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "created_at":1572505143
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/orders/)**
\ No newline at end of file
diff --git a/documents/papernach.md b/documents/papernach.md
new file mode 100644
index 00000000..01984f01
--- /dev/null
+++ b/documents/papernach.md
@@ -0,0 +1,679 @@
+## Paper NACH
+
+### Create customer
+```js
+instance.customer.create({
+  name: "Gaurav Kumar",
+  contact: 9123456780,
+  email: "gaurav.kumar@example.com",
+  fail_existing: 0,
+  gstin: "29XAbbA4369J1PA",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create order
+
+```js
+instance.orders.create({
+  amount: 0,
+  currency: "INR",
+  method: "emandate",
+  customer_id: "cust_1Aa00000000001",
+  receipt: "Receipt No. 1",
+  notes: {
+    notes_key_1: "Beam me up Scotty",
+    notes_key_2: "Engage"
+  },
+  token: {
+    auth_type: "netbanking",
+    max_amount: 9999900,
+    expire_at: 4102444799,
+    notes: {
+      notes_key_1: "Tea, Earl Grey, Hot",
+      notes_key_2: "Tea, Earl Grey… decaf."
+    },
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 1121431121541121,
+      account_type: "savings",
+      ifsc_code: "HDFC0000001"
+    }
+  }
+})
+```
+
+**Parameters:**
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| method*        | string  | The authorization method. In this case the value will be `emandate`                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+| token           | object  | A key-value pair                                                             |
+
+All parameters listed [here](https://razorpay.com/docs/api/route/#create-transfers-from-payments) are supported
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000001",
+   "entity":"order",
+   "amount":0,
+   "amount_paid":0,
+   "amount_due":0,
+   "currency":"INR",
+   "receipt":"rcptid #10",
+   "offer_id":null,
+   "offers":{
+      "entity":"collection",
+      "count":0,
+      "items":[
+
+      ]
+   },
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Beam me up Scotty",
+      "notes_key_2":"Engage"
+   },
+   "created_at":1579775420,
+   "token":{
+      "method":"nach",
+      "notes":{
+         "notes_key_1":"Tea, Earl Grey, Hot",
+         "notes_key_2":"Tea, Earl Grey… decaf."
+      },
+      "recurring_status":null,
+      "failure_reason":null,
+      "currency":"INR",
+      "max_amount":10000000,
+      "auth_type":"physical",
+      "expire_at":1580480689,
+      "nach":{
+         "create_form":true,
+         "form_reference1":"Recurring Payment for Gaurav Kumar",
+         "form_reference2":"Method Paper NACH",
+         "prefilled_form":"https://rzp.io/i/bitw",
+         "upload_form_url":"https://rzp.io/i/gts",
+         "description":"Paper NACH Gaurav Kumar"
+      },
+      "bank_account":{
+         "ifsc":"HDFC0000001",
+         "bank_name":"HDFC Bank",
+         "name":"Gaurav Kumar",
+         "account_number":"11214311215411",
+         "account_type":"savings",
+         "beneficiary_email":"gaurav.kumar@example.com",
+         "beneficiary_mobile":"9876543210"
+      },
+      "first_payment_amount":0
+   }
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/paper-nach/authorization-transaction/#113-create-an-authorization-payment) for authorization payment
+
+-------------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscription.createRecurringPayment({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  amount: 0,
+  currency: "INR",
+  type: "link",
+  description: "12 p.m. Meals",
+  subscription_registration: {
+    method: "nach",
+    auth_type: "physical",
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    },
+    nach: {
+      form_reference1: "Recurring Payment for Gaurav Kumar",
+      form_reference2: "Method Paper NACH"
+    },
+    expire_at: 1947483647,
+    max_amount: 50000
+  },
+  receipt: "Receipt No. 1",
+  sms_notify: 1,
+  email_notify: 1,
+  expire_by: 1647483647,
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+All parameters listed [here](https://razorpay.com/docs/api/recurring-payments/paper-nach/authorization-transaction/#121-create-a-registration-link) are supported
+
+**Response:**
+```json
+{
+    "id": "inv_FHrZiAubEzDdaq",
+    "entity": "invoice",
+    "receipt": "Receipt No. 1",
+    "invoice_number": "Receipt No. 1",
+    "customer_id": "cust_BMB3EwbqnqZ2EI",
+    "customer_details": {
+        "id": "cust_BMB3EwbqnqZ2EI",
+        "name": "Gaurav Kumar",
+        "email": "gaurav.kumar@example.com",
+        "contact": "9123456780",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": "Gaurav Kumar",
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "9123456780"
+    },
+    "order_id": "order_FHrZiBOkWHZPOp",
+    "line_items": [],
+    "payment_id": null,
+    "status": "issued",
+    "expire_by": 1647483647,
+    "issued_at": 1595491154,
+    "paid_at": null,
+    "cancelled_at": null,
+    "expired_at": null,
+    "sms_status": "sent",
+    "email_status": "sent",
+    "date": 1595491154,
+    "terms": null,
+    "partial_payment": false,
+    "gross_amount": 0,
+    "tax_amount": 0,
+    "taxable_amount": 0,
+    "amount": 0,
+    "amount_paid": 0,
+    "amount_due": 0,
+    "currency": "INR",
+    "currency_symbol": "₹",
+    "description": "12 p.m. Meals",
+    "notes": {
+        "note_key 1": "Beam me up Scotty",
+        "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "comment": null,
+    "short_url": "https://rzp.io/i/bzDYbNg",
+    "view_less": true,
+    "billing_start": null,
+    "billing_end": null,
+    "type": "link",
+    "group_taxes_discounts": false,
+    "created_at": 1595491154,
+    "idempotency_key": null,
+    "token": {
+        "method": "nach",
+        "notes": {
+            "note_key 1": "Beam me up Scotty",
+            "note_key 2": "Tea. Earl Gray. Hot."
+        },
+        "recurring_status": null,
+        "failure_reason": null,
+        "currency": "INR",
+        "max_amount": 50000,
+        "auth_type": "physical",
+        "expire_at": 1947483647,
+        "nach": {
+            "create_form": true,
+            "form_reference1": "Recurring Payment for Gaurav Kumar",
+            "form_reference2": "Method Paper NACH",
+            "prefilled_form": "https://rzp.io/i/exdIzYN",
+            "upload_form_url": "https://rzp.io/i/bzDYbNg",
+            "description": "12 p.m. Meals"
+        },
+        "bank_account": {
+            "ifsc": "HDFC0001233",
+            "bank_name": "HDFC Bank",
+            "name": "Gaurav Kumar",
+            "account_number": "11214311215411",
+            "account_type": "savings",
+            "beneficiary_email": "gaurav.kumar@example.com",
+            "beneficiary_mobile": "9123456780"
+        },
+        "first_payment_amount": 0
+    },
+    "nach_form_url": "https://rzp.io/i/exdIzYN"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId, medium)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be notified                         |
+| medium*          | string | `sms`/`email`, Medium through which notification should be sent.                         |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Cancel a registration link
+
+```js
+instance.invoices.cancel(invoiceId);
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be cancelled                         |
+
+**Response:**
+```json
+{
+  "id": "inv_FHrZiAubEzDdaq",
+  "entity": "invoice",
+  "receipt": "Receipt No. 27",
+  "invoice_number": "Receipt No. 27",
+  "customer_id": "cust_BMB3EwbqnqZ2EI",
+  "customer_details": {
+    "id": "cust_BMB3EwbqnqZ2EI",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9123456780",
+    "gstin": null,
+    "billing_address": null,
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9123456780"
+  },
+  "order_id": "order_FHrZiBOkWHZPOp",
+  "line_items": [],
+  "payment_id": null,
+  "status": "cancelled",
+  "expire_by": 1647483647,
+  "issued_at": 1595491154,
+  "paid_at": null,
+  "cancelled_at": 1595491339,
+  "expired_at": null,
+  "sms_status": "sent",
+  "email_status": "sent",
+  "date": 1595491154,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 0,
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "amount": 0,
+  "amount_paid": 0,
+  "amount_due": 0,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "12 p.m. Meals",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/bzDYbNg",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "link",
+  "group_taxes_discounts": false,
+  "created_at": 1595491154,
+  "idempotency_key": null,
+  "token": {
+    "method": "nach",
+    "notes": {
+      "note_key 1": "Beam me up Scotty",
+      "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "recurring_status": null,
+    "failure_reason": null,
+    "currency": "INR",
+    "max_amount": 50000,
+    "auth_type": "physical",
+    "expire_at": 1947483647,
+    "nach": {
+      "create_form": true,
+      "form_reference1": "Recurring Payment for Gaurav Kumar",
+      "form_reference2": "Method Paper NACH",
+      "prefilled_form": "https://rzp.io/i/tSYd5aV",
+      "upload_form_url": "https://rzp.io/i/bzDYbNg",
+      "description": "12 p.m. Meals"
+    },
+    "bank_account": {
+      "ifsc": "HDFC0001233",
+      "bank_name": "HDFC Bank",
+      "name": "Gaurav Kumar",
+      "account_number": "11214311215411",
+      "account_type": "savings",
+      "beneficiary_email": "gaurav.kumar@example.com",
+      "beneficiary_mobile": "9123456780"
+    },
+    "first_payment_amount": 0
+  },
+  "nach_form_url": "https://rzp.io/i/tSYd5aV"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch Payment ID using Order ID
+
+```js
+instance.orders.fetchPayments(orderId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| orderId*          | string | Order id for which payment id need to be fetched                         |
+
+**Response:**
+```json
+{
+  "entity":"collection",
+  "count":1,
+  "items":[
+    {
+      "id":"pay_1Aa00000000003",
+      "entity":"payment",
+      "amount":0,
+      "currency":"INR",
+      "status":"captured",
+      "order_id":"order_1Aa00000000003",
+      "invoice_id":"inv_1Aa00000000003",
+      "international":false,
+      "method":"nach",
+      "amount_refunded":0,
+      "refund_status":null,
+      "captured":true,
+      "description":"12 p.m. Meals",
+      "card_id":null,
+      "bank":"HDFC",
+      "wallet":null,
+      "vpa":null,
+      "email":"gaurav.kumar@example.com",
+      "contact":"99876543210",
+      "customer_id":"cust_1Aa00000000002",
+      "token_id":"token_1Aa00000000003",
+      "notes":{
+        "note_key 1":"Beam me up Scotty",
+        "note_key 2":"Tea. Earl Gray. Hot."
+      },
+      "fee":0,
+      "tax":0,
+      "error_code":null,
+      "error_description":null,
+      "created_at":1580109147
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch token by payment ID
+
+```js
+instance.payments.fetch(paymentId)
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| paymentId* | string | Id of the payment to be retrieved |
+
+**Response:**
+```json
+{
+  "id": "pay_EnLNTjINiPkMEZ",
+  "entity": "payment",
+  "amount": 0,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_EnLLfglmKksr4K",
+  "invoice_id": "inv_EnLLfgCzRfcMuh",
+  "international": false,
+  "method": "nach",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": "Invoice #inv_EnLLfgCzRfcMuh",
+  "card_id": null,
+  "bank": "UTIB",
+  "wallet": null,
+  "vpa": null,
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_EnLNTnn7uyRg5V",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {},
+  "created_at": 1588827564
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch tokens by customer ID
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "token_EhYgIE3pOyMQpD",
+      "entity": "token",
+      "token": "3mQ5Czc6APNppI",
+      "bank": "HDFC",
+      "wallet": null,
+      "method": "nach",
+      "vpa": null,
+      "recurring": true,
+      "recurring_details": {
+        "status": "confirmed",
+        "failure_reason": null
+      },
+      "auth_type": "physical",
+      "mrn": null,
+      "used_at": 1587564373,
+      "created_at": 1587564373,
+      "dcc_enabled": false
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete token
+
+```js
+instance.customers.deleteToken(customerId, tokenId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+| tokenId*          | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an order to charge the customer
+
+```js
+instance.orders.create({
+  amount: 1000,
+  currency: "INR",
+  receipt: "Receipt No. 1",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":1000,
+   "amount_paid":0,
+   "amount_due":1000,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1579782776
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create a Recurring Payment
+
+```js
+instance.payments.createRecurringPayment({
+  "email": "gaurav.kumar@example.com",
+  "contact": "9123456789",
+  "amount": 1000,
+  "currency": "INR",
+  "order_id": "order_1Aa00000000002",
+  "customer_id": "cust_1Aa00000000001",
+  "token": "token_1Aa00000000001",
+  "recurring": "1",
+  "description": "Creating recurring payment for Gaurav Kumar",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*          | string | The customer's email address.                                               |
+| contact*        | string  | The customer's phone number.                      |
+| amount*         | integer  | The amount you want to charge your customer. This should be the same as the amount in the order.                        |
+| currency*        | string  | The 3-letter ISO currency code for the payment. Currently, only `INR` is supported. |
+| order_id*        | string  | The unique identifier of the order created. |
+| customer_id*        | string  | The `customer_id` for the customer you want to charge.  |
+| token*        | string  | The `token_id` generated when the customer successfully completes the authorization payment. Different payment instruments for the same customer have different `token_id`.|
+| recurring*        | string  | Determines if recurring payment is enabled or not. Possible values:<br>* `1` - Recurring is enabled.* `0` - Recurring is not enabled.|
+| description*        | string  | A user-entered description for the payment.|
+| notes*        | object  | Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/paper-nach/authorization-transaction/)**
\ No newline at end of file
diff --git a/documents/payment.md b/documents/payment.md
new file mode 100644
index 00000000..548e6518
--- /dev/null
+++ b/documents/payment.md
@@ -0,0 +1,512 @@
+## Payments
+
+### Capture payment
+
+```js
+instance.payments.capture(paymentId, amount, currency)
+```
+
+**Parameters:**
+
+| Name      | Type    | Description                                                                    |
+|-----------|---------|--------------------------------------------------------------------------------|
+| paymentId* | string  | Id of the payment to capture                                                   |
+| amount*    | integer | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency   | string  | The currency of the payment (defaults to INR)                                  |
+
+**Response:**
+```json
+{
+  "id": "pay_G8VQzjPLoAvm6D",
+  "entity": "payment",
+  "amount": 1000,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_G8VPOayFxWEU28",
+  "invoice_id": null,
+  "international": false,
+  "method": "upi",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": "Purchase Shoes",
+  "card_id": null,
+  "bank": null,
+  "wallet": null,
+  "vpa": "gaurav.kumar@exampleupi",
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919999999999",
+  "customer_id": "cust_DitrYCFtCIokBO",
+  "notes": [],
+  "fee": 24,
+  "tax": 4,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "rrn": "033814379298"
+  },
+  "created_at": 1606985209
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all payments
+
+```js
+instance.payments.all(option)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 2,
+  "items": [
+    {
+      "id": "pay_G8VaL2Z68LRtDs",
+      "entity": "payment",
+      "amount": 900,
+      "currency": "INR",
+      "status": "captured",
+      "order_id": "order_G8VXfKDWDEOHHd",
+      "invoice_id": null,
+      "international": false,
+      "method": "netbanking",
+      "amount_refunded": 0,
+      "refund_status": null,
+      "captured": true,
+      "description": "Purchase Shoes",
+      "card_id": null,
+      "bank": "KKBK",
+      "wallet": null,
+      "vpa": null,
+      "email": "gaurav.kumar@example.com",
+      "contact": "+919999999999",
+      "customer_id": "cust_DitrYCFtCIokBO",
+      "notes": [],
+      "fee": 22,
+      "tax": 4,
+      "error_code": null,
+      "error_description": null,
+      "error_source": null,
+      "error_step": null,
+      "error_reason": null,
+      "acquirer_data": {
+        "bank_transaction_id": "0125836177"
+      },
+      "created_at": 1606985740
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a payment
+
+```js
+instance.payments.fetch(paymentId)
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| paymentId* | string | Id of the payment to be retrieved |
+
+**Response:**
+```json
+{
+  "id": "pay_G8VQzjPLoAvm6D",
+  "entity": "payment",
+  "amount": 1000,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_G8VPOayFxWEU28",
+  "invoice_id": null,
+  "international": false,
+  "method": "upi",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": "Purchase Shoes",
+  "card_id": null,
+  "bank": null,
+  "wallet": null,
+  "vpa": "gaurav.kumar@exampleupi",
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919999999999",
+  "customer_id": "cust_DitrYCFtCIokBO",
+  "notes": [],
+  "fee": 24,
+  "tax": 4,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "rrn": "033814379298"
+  },
+  "created_at": 1606985209
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch payments for an order
+
+```js
+instance.orders.fetchPayments(orderId)
+```
+**Parameters**
+
+| Name     | Type   | Description                         |
+|----------|--------|-------------------------------------|
+| orderId* | string | The id of the order to be retrieve payment info |
+
+**Response:**
+```json
+{
+  "count": 1,
+  "entity": "collection",
+  "items": [
+    {
+      "id": "pay_DovGQXOkPBJjjU",
+      "entity": "payment",
+      "amount": 600,
+      "currency": "INR",
+      "status": "captured",
+      "order_id": "order_DovFx48wjYEr2I",
+      "method": "netbanking",
+      "amount_refunded": 0,
+      "refund_status": null,
+      "captured": true,
+      "description": "A Wild Sheep Chase is a novel by Japanese author Haruki Murakami",
+      "card_id": null,
+      "bank": "SBIN",
+      "wallet": null,
+      "vpa": null,
+      "email": "gaurav.kumar@example.com",
+      "contact": "9364591752",
+      "fee": 70,
+      "tax": 10,
+      "error_code": null,
+      "error_description": null,
+      "error_source": null,
+      "error_step": null,
+      "error_reason": null,
+      "notes": [],
+      "acquirer_data": {
+        "bank_transaction_id": "0125836177"
+      },
+      "created_at": 1400826750
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Update a payment
+
+```js
+instance.payments.edit(paymentId,{
+	"notes": {
+		"key1": "value1",
+		"key2": "value2"
+	}
+})
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| paymentId* | string  | Id of the payment to update          |
+| notes*       | object  | A key-value pair                     |
+
+**Response:**
+```json
+{
+  "id": "pay_CBYy6tLmJTzn3Q",
+  "entity": "payment",
+  "amount": 1000,
+  "currency": "INR",
+  "status": "authorized",
+  "order_id": null,
+  "invoice_id": null,
+  "international": false,
+  "method": "netbanking",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": false,
+  "description": null,
+  "card_id": null,
+  "bank": "UTIB",
+  "wallet": null,
+  "vpa": null,
+  "email": "testme@acme.com",
+  "notes": {
+    "key1": "value1",
+    "key2": "value2"
+  },
+  "fee": null,
+  "tax": null,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "bank_transaction_id": "0125836177"
+  },
+  "created_at": 1553504328
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch expanded card or emi details for payments
+
+Request #1: Card
+
+```js
+instance.payments.all({'expand[]':'card'})
+```
+
+Request #2: EMI
+
+```js
+instance.payments.all({'expand[]':'emi'})
+```
+
+**Response:**<br>
+For expanded card or emi details for payments response please click [here](https://razorpay.com/docs/api/payments/#fetch-expanded-card-or-emi-details-for-payments)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch card details with paymentId
+
+```js
+instance.payments.fetchCardDetails(paymentId)
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| paymentId* | string  | Id of the payment to update          |
+
+**Response:**
+```json
+{
+  "id": "card_6krZ6bcjoeqyV9",
+  "entity": "card",
+  "name": "Gaurav",
+  "last4": "3335",
+  "network": "Visa",
+  "type": "debit",
+  "issuer": "SBIN",
+  "international": false,
+  "emi": null,
+  "sub_type": "business"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch Payment Downtime Details
+
+```js
+instance.payments.fetchPaymentDowntime()
+```
+**Response:** <br>
+For payment downtime response please click [here](https://razorpay.com/docs/api/payments/downtime/#fetch-payment-downtime-details)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch Payment Downtime
+
+```js
+instance.payments.fetchPaymentDowntimeById(downtimeId)
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| downtimeId* | string  | Id to fetch payment downtime         |
+
+**Response:**
+For payment downtime by id response please click [here](https://razorpay.com/docs/api/payments/downtime/#fetch-payment-downtime-details-by-id)
+-------------------------------------------------------------------------------------------------------
+
+### Payment capture settings API
+
+```js
+instance.orders.create({
+  amount:50000,
+  currency: 'INR',
+  receipt: 'rcptid_11',
+  payment: {
+    capture : 'automatic',
+    capture_options : {
+      automatic_expiry_period : 12,
+      manual_expiry_period : 7200,
+      refund_speed : 'optimum'
+    }  
+  }
+})
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.       |
+| receipt         | string  | Your system order reference id.                                              |
+| payment         | object  | please refer this [doc](https://razorpay.com/docs/payments/payments/capture-settings/api/) for params                       |
+
+**Response:** <br>
+```json
+{
+  "id": "order_DBJOWzybf0sJbb",
+  "entity": "order",
+  "amount": 50000,
+  "amount_paid": 0,
+  "amount_due": 50000,
+  "currency": "INR",
+  "receipt": "rcptid_11",
+  "status": "created",
+  "attempts": 0,
+  "notes": [],
+  "created_at": 1566986570
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create Payment Json
+
+```js
+instance.payments.createPaymentJson({
+  amount: 100,
+  currency: "INR",
+  order_id: "order_EAkbvXiCJlwhHR",
+  email: "gaurav.kumar@example.com",
+  contact: 9090909090,
+  method: "card",
+  card:{
+    number: 4111111111111111,
+    name: "Gaurav",
+    expiry_month: 11,
+    expiry_year: 23,
+    cvv: 100
+  }
+})
+```
+
+**Parameters:**
+ please refer this [doc](https://razorpay.com/docs/payment-gateway/s2s-integration/payment-methods/) for params
+
+**Response:** <br>
+```json
+{
+  "razorpay_payment_id": "pay_FVmAstJWfsD3SO",
+  "next": [
+    {
+      "action": "redirect",
+      "url": "https://api.razorpay.com/v1/payments/FVmAtLUe9XZSGM/authorize"
+    },
+    {
+      "action": "otp_generate",
+      "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_generate?track_id=FVmAtLUe9XZSGM&key_id=<YOUR_KEY_ID>"
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### OTP Generate
+
+```js
+instance.payments.otpGenerate();
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| paymentId*    | integer | Unique identifier of the payment                                               |
+
+**Response:** <br>
+
+```json
+{
+ "razorpay_payment_id": "pay_FVmAstJWfsD3SO",
+ "next": [
+  {
+   "action": "otp_submit",
+   "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_submit/ac2d415a8be7595de09a24b41661729fd9028fdc?key_id=<YOUR_KEY_ID>"
+  },
+  {
+   "action": "otp_resend",
+   "url": "https://api.razorpay.com/v1/payments/pay_FVmAstJWfsD3SO/otp_resend/json?key_id=<YOUR_KEY_ID>"
+  }
+ ],
+ "metadata": {
+  "issuer": "HDFC",
+  "network": "MC",
+  "last4": "1111",
+  "iin": "411111"
+ }
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### OTP Submit
+
+```js
+instance.payments.otpSubmit(paymentId,{otp:'12345'})
+```
+
+**Parameters:**
+
+| Name        | Type    | Description                          |
+|-------------|---------|--------------------------------------|
+| paymentId*    | integer | Unique identifier of the payment                                               |
+
+**Response:** <br>
+Success
+```json
+{
+ "razorpay_payment_id": "pay_D5jmY2H6vC7Cy3",
+ "razorpay_order_id": "order_9A33XWu170gUtm",
+ "razorpay_signature": "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+Failure
+```json
+{
+  "error": {
+    "code" : "BAD_REQUEST_ERROR",
+    "description": "payment processing failed because of incorrect otp"
+  },
+  "next": ["otp_submit", "otp_resend"]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/payments/)**
\ No newline at end of file
diff --git a/documents/paymentLink.md b/documents/paymentLink.md
new file mode 100644
index 00000000..f5cad404
--- /dev/null
+++ b/documents/paymentLink.md
@@ -0,0 +1,981 @@
+## Payment Links
+
+### Create payment link
+
+Request #1
+Standard Payment Link
+
+```js
+instance.paymentLink.create({
+  amount: 500,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  description: "For XYZ purpose",
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 919999999999
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  notes: {
+    policy_name: "Jeevan Bima"
+  },
+  callback_url: "https://example-callback-url.com/",
+  callback_method: "get"
+})
+```
+
+Request #2
+UPI Payment Link
+
+```js
+instance.paymentLink.create({
+  upi_link: true,
+  amount: 500,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  description: "For XYZ purpose",
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 919999999999
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  notes: {
+    policy_name: "Jeevan Bima"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|upi_link*          | boolean | boolean Must be set to true   //   to creating UPI Payment Link only                                     |
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|description           | string  | A brief description of the Payment Link                     |
+|reference_id           | string  | AReference number tagged to a Payment Link.                      |
+|customer           | object  | name, email, contact                 |
+|expire_by           | integer  | Timestamp, in Unix, at which the Payment Link will expire. By default, a Payment Link will be valid for six months from the date of creation.                     |
+|notify           | object  | sms or email (boolean)                     |
+|notes           | json object  | Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. For example, "note_key": "Beam me up Scotty”                     |
+
+**Response:**
+For create payment link response please click [here](https://razorpay.com/docs/api/payment-links/#create-payment-link)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all payment link
+
+```js
+instance.paymentLink.all()
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|payment_id          | string | Unique identifier of the payment associated with the Payment Link.                                               |
+|reference_id        | string  | The unique reference number entered by you while creating the Payment Link.                     |
+
+**Response:**
+For fetch all payment link response please click [here](https://razorpay.com/docs/api/payment-links/#all-payment-links)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch specific payment link
+
+```js
+instance.paymentLink.fetch(paymentLinkId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentLinkId*          | string |  Unique identifier of the Payment Link.                         |
+
+**Response:**
+For fetch specific payment link response please click [here](https://razorpay.com/docs/api/payment-links/#specific-payment-links-by-id)
+
+-------------------------------------------------------------------------------------------------------
+
+### Update payment link
+
+```js
+instance.paymentLink.edit({
+    "reference_id": "TS35",
+    "expire_by": 1653347540,
+    "reminder_enable":false,
+    "notes":{
+      "policy_name": "Jeevan Saral"
+    }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentLinkId*          | string | The unique identifier of the Payment Link that needs to be updated.                         |
+| accept_partial         | boolean | Indicates whether customers can make partial payments using the Payment Link. Possible values: true - Customer can make partial payments. false (default) - Customer cannot make partial payments.                         |
+| reference_id          | string | Adds a unique reference number to an existing link.                         |
+| expire_by         | integer | Timestamp, in Unix format, when the payment links should expire.                         |
+| notes          | string | object Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. For example, "note_key": "Beam me up Scotty”.                         |
+
+**Response:**
+For updating payment link response please click [here](https://razorpay.com/docs/api/payment-links/#update-payment-link)
+
+-------------------------------------------------------------------------------------------------------
+
+### Cancel a payment link
+
+```js
+instance.paymentLink.cancel(paymentLinkId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentLinkId*          | string | Unique identifier of the Payment Link.                         |
+
+**Response:**
+For canceling payment link response please click [here](https://razorpay.com/docs/api/payment-links/#cancel-payment-link)
+-------------------------------------------------------------------------------------------------------
+
+### Send notification
+
+```js
+instance.paymentLink.notifyBy(paymentLinkId, medium)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentLinkId*          | string | Unique identifier of the Payment Link that should be resent.                         |
+| medium*          | string | `sms`/`email`,Medium through which the Payment Link must be resent. Allowed values are:           |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Transfer payments received using payment links
+
+```js
+instance.paymentLink.create({
+  amount: 20000,
+  currency: "INR",
+  accept_partial: false,
+  description: "For XYZ purpose",
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 919999999999
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    order: [
+      {
+        account: "acc_CNo3jSI8OkFJJJ",
+        amount: 500,
+        currency: "INR",
+        notes: {
+          branch: "Acme Corp Bangalore North",
+          name: "Saurav Kumar",
+          linked_account_notes: [
+            "branch"
+          ]
+        }
+      }
+    ]
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|options*           | array  |  Options to configure the transfer in the Payment Link. Parent parameter under which the order child parameter must be passed.                     |
+
+**Response:**
+```json
+{
+  "accept_partial": false,
+  "amount": 1500,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596526969,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "deleted_at": 0,
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 0,
+  "id": "plink_FMbhpT6nqDjDei",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#aasasw8",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/ORor1MT",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596526969,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Offers on payment links
+
+```js
+instance.paymentLink.create({
+  "amount": 3400,
+  "currency": "INR",
+  "accept_partial": false,
+  "reference_id": "#425",
+  "description": "Payment for policy no #23456",
+  "customer": {
+    "name": "Gaurav Kumar",
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com"
+  },
+  "notify": {
+    "sms": true,
+    "email": true
+  },
+  "reminder_enable": false,
+  "options": {
+    "order": {
+      "offers": [
+        "offer_F4WMTC3pwFKnzq",
+        "offer_F4WJHqvGzw8dWF"
+      ]
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|description           | string  | A brief description of the Payment Link                     |
+|reference_id           | string  | AReference number tagged to a Payment Link.                      |
+|customer           | array  | name, email, contact                 |
+|expire_by           | integer  | Timestamp, in Unix, at which the Payment Link will expire. By default, a Payment Link will be valid for six months from the date of creation.                     |
+|notify           | object  | sms or email (boolean)                     |
+|options*        | array  | Options to associate the offer_id with the Payment Link. Parent parameter under which the order child parameter must be passed.                     |
+
+**Response:**
+```json
+{
+  "accept_partial": false,
+  "amount": 3400,
+  "amount_paid": 0,
+  "cancelled_at": 0,
+  "created_at": 1600183040,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 0,
+  "id": "plink_FdLt0WBldRyE5t",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#425",
+  "reminder_enable": false,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/CM5ohDC",
+  "status": "created",
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Managing reminders for payment links
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#425",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: false
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|expire_by           | integer  | Timestamp, in Unix, at which the Payment Link will expire. By default, a Payment Link will be valid for six months from the date of creation.                     |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+
+**Response:**
+```json
+{
+  "amount": 340000,
+  "amount_due": 340000,
+  "amount_paid": 0,
+  "billing_end": null,
+  "billing_start": null,
+  "cancelled_at": null,
+  "comment": null,
+  "created_at": 1592579126,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "customer_details": {
+    "billing_address": null,
+    "contact": "9900990099",
+    "customer_contact": "9900990099",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "gstin": null,
+    "id": "cust_F4WNtqj1xb0Duv",
+    "name": "Gaurav Kumar",
+    "shipping_address": null
+  },
+  "customer_id": "cust_F4WNtqj1xb0Duv",
+  "date": 1592579126,
+  "description": "Salon at Home Service",
+  "email_status": null,
+  "entity": "invoice",
+  "expire_by": 1608390326,
+  "expired_at": null,
+  "first_payment_min_amount": 0,
+  "gross_amount": 340000,
+  "group_taxes_discounts": false,
+  "id": "inv_F4WfpZLk1ct35b",
+  "invoice_number": null,
+  "issued_at": 1592579126,
+  "line_items": [],
+  "notes": [],
+  "order_id": "order_F4WfpxUzWmYOTl",
+  "paid_at": null,
+  "partial_payment": false,
+  "payment_id": null,
+  "receipt": "5757",
+  "reminder_enable": false,
+  "short_url": "https://rzp.io/i/vitLptM",
+  "sms_status": null,
+  "status": "issued",
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "terms": null,
+  "type": "link",
+  "user_id": "",
+  "view_less": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Rename labels in checkout section
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#412232",
+  description: "Payment for policy no #23456",
+  expire_by: 1599193801,
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    hosted_page: {
+      label: {
+        receipt: "Ref No.",
+        description: "Course Name",
+        amount_payable: "Course Fee Payable",
+        amount_paid: "Course Fee Paid",
+        partial_amount_due: "Fee Installment Due",
+        partial_amount_paid: "Fee Installment Paid",
+        expire_by: "Pay Before",
+        expired_on: "Link Expired. Please contact Admin",
+        amount_due: "Course Fee Due"
+      },
+      show_preferences: {
+        issued_to: false
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|expire_by           | integer  | Timestamp, in Unix, at which the Payment Link will expire. By default, a Payment Link will be valid for six months from the date of creation.                     |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Options to rename the labels for partial payment fields in the checkout form. Parent parameter under which the checkout and partial_payment child parameters must be passed. |
+
+**Response:**
+```json
+{
+  "accept_partial": true,
+  "amount": 1000,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596193199,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "deleted_at": 0,
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 100,
+  "id": "plink_FL4vbXVKfW7PAz",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#42321",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/F4GC9z1",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596193199,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Change Business name
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#2234542",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      name: "Lacme Corp"
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Option to customize the business name. Parent parameter under which the checkout child parameter must be passed.|
+
+**Response:**
+```json
+{
+  "accept_partial": true,
+  "amount": 1000,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596187657,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 100,
+  "id": "plink_FL3M2gJFs1Jkma",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#2234542",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/at2OOsR",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596187657,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Prefill checkout fields
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#417",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: "919999999999",
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      prefill: {
+        method: "card",
+        "card[name]": "Gaurav Kumar",
+        "card[number]": 4111111111111111,
+        "card[expiry]": "12/21",
+        "card[cvv]": 123
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | array  | Options to customize Checkout. Parent parameter under which the checkout and prefill child parameters must be passed.|
+
+**Response:**
+For prefill checkout fields response please click [here](https://razorpay.com/docs/payment-links/api/new/advanced-options/customize/prefill/)
+
+-------------------------------------------------------------------------------------------------------
+
+### Customize payment methods
+
+```js
+instance.paymentLink.create({
+  amount: 500,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  description: "For XYZ purpose",
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 919999999999
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      method: {
+        netbanking: 1,
+        card: 1,
+        upi: 0,
+        wallet: 0
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Options to display or hide payment methods on the Checkout section. Parent parameter under which the checkout and method child parameters must be passed.|
+
+**Response:**
+```json
+{
+  "accept_partial": true,
+  "amount": 1000,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596188371,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "deleted_at": 0,
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 100,
+  "id": "plink_FL3YbdvN2Cj6gh",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#543422",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/wKiXKud",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596188371,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Set checkout fields as read-only
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#20",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      readonly: {
+        email: 1,
+        contact: 1
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Options to set contact and email as read-only fields on Checkout. Parent parameter under which the checkout and readonly child parameters must be passed.|
+
+**Response:**
+```json
+{
+  "accept_partial": true,
+  "amount": 1000,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596190845,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "deleted_at": 0,
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 100,
+  "id": "plink_FL4GA1t6FBcaVR",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#19129",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/QVwUglR",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596190845,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Implement thematic changes in payment links checkout section
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#423212",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      theme: {
+        hide_topbar: true
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Options to show or hide the top bar. Parent parameter under which the checkout and theme child parameters must be passed.|
+
+**Response:**
+```json
+{
+  "accept_partial": true,
+  "amount": 1000,
+  "amount_paid": 0,
+  "callback_method": "",
+  "callback_url": "",
+  "cancelled_at": 0,
+  "created_at": 1596187814,
+  "currency": "INR",
+  "customer": {
+    "contact": "+919999999999",
+    "email": "gaurav.kumar@example.com",
+    "name": "Gaurav Kumar"
+  },
+  "description": "Payment for policy no #23456",
+  "expire_by": 0,
+  "expired_at": 0,
+  "first_min_partial_amount": 100,
+  "id": "plink_FL3Oncr7XxXFf6",
+  "notes": null,
+  "notify": {
+    "email": true,
+    "sms": true
+  },
+  "payments": null,
+  "reference_id": "#423212",
+  "reminder_enable": true,
+  "reminders": [],
+  "short_url": "https://rzp.io/i/j45EmLE",
+  "source": "",
+  "source_id": "",
+  "status": "created",
+  "updated_at": 1596187814,
+  "user_id": ""
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Rename labels in payment details section
+
+```js
+instance.paymentLink.create({
+  amount: 1000,
+  currency: "INR",
+  accept_partial: true,
+  first_min_partial_amount: 100,
+  reference_id: "#421",
+  description: "Payment for policy no #23456",
+  customer: {
+    name: "Gaurav Kumar",
+    contact: 919999999999,
+    email: "gaurav.kumar@example.com"
+  },
+  notify: {
+    sms: true,
+    email: true
+  },
+  reminder_enable: true,
+  options: {
+    checkout: {
+      partial_payment: {
+        min_amount_label: "Minimum Money to be paid",
+        partial_amount_label: "Pay in parts",
+        partial_amount_description: "Pay at least ₹100",
+        full_amount_label: "Pay the entire amount"
+      }
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+|amount*        | integer  | Amount to be paid using the Payment Link.                     |
+|currency           | string  |  A three-letter ISO code for the currency in which you want to accept the payment. For example, INR.                     |
+|accept_partial        | boolean  |  Indicates whether customers can make partial payments using the Payment Link. Possible values:true - Customer can make partial payments.false (default) - Customer cannot make partial payments.                     |
+|first_min_partial_amount        | integer  |                      |
+|description           | string  | A brief description of the Payment Link                     |
+|customer           | object  | name, email, contact                 |
+|notify           | object  | sms or email (boolean)                     |
+|reminder_enable       | boolean  | To disable reminders for a Payment Link, pass reminder_enable as false                     |
+|options*       | object  | Parent parameter under which the hosted_page and label child parameters must be passed.|
+
+**Response:**
+For rename labels in payment details section response please click [here](https://razorpay.com/docs/payment-links/api/new/advanced-options/customize/rename-payment-details-labels/)
+
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/payment-links/)**
\ No newline at end of file
diff --git a/documents/paymentVerfication.md b/documents/paymentVerfication.md
new file mode 100644
index 00000000..f05ca0b4
--- /dev/null
+++ b/documents/paymentVerfication.md
@@ -0,0 +1,68 @@
+## payment verification
+
+```js
+var { validatePaymentVerification } = require('./dist/utils/razorpay-utils');
+```
+
+### Verify payment verification
+
+```js
+validatePaymentVerification({"order_id": razorpayOrderId, "payment_id": razorpayPaymentId }, signature, secret);
+```
+
+**Parameters:**
+
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| orderId*  | string | The id of the order to be fetched  |
+| paymentId*    | string | The id of the payment to be fetched |
+| signature* | string   | Signature returned by the Checkout. This is used to verify the payment. |
+| secret* | string   | your api secret as secret |
+
+-------------------------------------------------------------------------------------------------------
+### Verify subscription verification
+
+```js
+validatePaymentVerification({"subscription_id": subscriptionId, "payment_id": razorpayPaymentId }, signature, secret)
+```
+
+**Parameters:**
+
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be fetched  |
+| paymentId*    | string | The id of the payment to be fetched |
+| signature* | string   | Signature returned by the Checkout. This is used to verify the payment. |
+| secret* | string   | your api secret as secret |
+
+-------------------------------------------------------------------------------------------------------
+### Verify paymentlink verification
+
+```js
+validatePaymentVerification({
+  "payment_link_id": PaymentlinkId,
+  "payment_id": PaymentId,
+  "payment_link_reference_id": PaymentLinkReferenceId,
+  "payment_link_status": PaymentLinkStatus,
+}, signature , secret);
+```
+
+**Parameters:**
+
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| razorpayPaymentlinkId*  | string | The id of the paymentlink to be fetched  |
+| razorpayPaymentId*  | string | The id of the payment to be fetched  |
+| razorpayPaymentLinkReferenceId*  | string |  A reference number tagged to a Payment Link |
+| razorpayPaymentLinkStatus*  | string | Current status of the link  |
+| signature* | string   | Signature returned by the Checkout. This is used to verify the payment. |
+| secret* | string   | your api secret as secret |
+
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
\ No newline at end of file
diff --git a/documents/plans.md b/documents/plans.md
new file mode 100644
index 00000000..6e0558ea
--- /dev/null
+++ b/documents/plans.md
@@ -0,0 +1,172 @@
+## Plans
+
+### Create plan
+
+```js
+instance.plans.create({
+  period: "weekly",
+  interval: 1,
+  item: {
+    name: "Test plan - Weekly",
+    amount: 69900,
+    currency: "INR",
+    description: "Description for the test plan"
+  },
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| period*          | string | Used together with `interval` to define how often the customer should be charged.Possible values:<br>1.`daily` <br>2.`weekly`<br>3.`monthly` <br>4.`yearly`  |
+| interval*          | string | Used together with `period` to define how often the customer should be charged  |
+| items*          | array | Details of the plan. For more details please refer [here](https://razorpay.com/docs/api/subscriptions/#create-a-plan) |
+| notes          | array | Notes you can enter for the contact for future reference.   |
+
+**Response:**
+```json
+{
+  "id":"plan_00000000000001",
+  "entity":"plan",
+  "interval":1,
+  "period":"weekly",
+  "item":{
+    "id":"item_00000000000001",
+    "active":true,
+    "name":"Test plan - Weekly",
+    "description":"Description for the test plan - Weekly",
+    "amount":69900,
+    "unit_amount":69900,
+    "currency":"INR",
+    "type":"plan",
+    "unit":null,
+    "tax_inclusive":false,
+    "hsn_code":null,
+    "sac_code":null,
+    "tax_rate":null,
+    "tax_id":null,
+    "tax_group_id":null,
+    "created_at":1580219935,
+    "updated_at":1580219935
+  },
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "created_at":1580219935
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all plans
+
+```js
+instance.plans.all(options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "plan_00000000000001",
+      "entity": "plan",
+      "interval": 1,
+      "period": "weekly",
+      "item": {
+        "id": "item_00000000000001",
+        "active": true,
+        "name": "Test plan - Weekly",
+        "description": "Description for the test plan - Weekly",
+        "amount": 69900,
+        "unit_amount": 69900,
+        "currency": "INR",
+        "type": "plan",
+        "unit": null,
+        "tax_inclusive": false,
+        "hsn_code": null,
+        "sac_code": null,
+        "tax_rate": null,
+        "tax_id": null,
+        "tax_group_id": null,
+        "created_at": 1580220492,
+        "updated_at": 1580220492
+      },
+      "notes": {
+        "notes_key_1": "Tea, Earl Grey, Hot",
+        "notes_key_2": "Tea, Earl Grey… decaf."
+      },
+      "created_at": 1580220492
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch particular plan
+
+```js
+instance.plans.fetch(planId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| planId  | string | The id of the plan to be fetched  |
+
+**Response:**
+```json
+{
+  "id":"plan_00000000000001",
+  "entity":"plan",
+  "interval":1,
+  "period":"weekly",
+  "item":{
+    "id":"item_00000000000001",
+    "active":true,
+    "name":"Test plan - Weekly",
+    "description":"Description for the test plan - Weekly",
+    "amount":69900,
+    "unit_amount":69900,
+    "currency":"INR",
+    "type":"plan",
+    "unit":null,
+    "tax_inclusive":false,
+    "hsn_code":null,
+    "sac_code":null,
+    "tax_rate":null,
+    "tax_id":null,
+    "tax_group_id":null,
+    "created_at":1580220492,
+    "updated_at":1580220492
+  },
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "created_at":1580220492
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/subscriptions/#plans)**
\ No newline at end of file
diff --git a/documents/qrcode.md b/documents/qrcode.md
new file mode 100644
index 00000000..e2f2284f
--- /dev/null
+++ b/documents/qrcode.md
@@ -0,0 +1,413 @@
+## Qr Codes
+
+### Create Qr code
+
+```js
+instance.qrCode.create({
+  type: "upi_qr",
+  name: "Store_1",
+  usage: "single_use",
+  fixed_amount: true,
+  payment_amount: 300,
+  description: "For Store 1",
+  customer_id: "cust_HKsR5se84c5LTO",
+  close_by: 1681615838,
+  notes: {
+    purpose: "Test UPI QR code notes"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| type*          | string | The type of QR code i.e, `upi_qr`/`bharat_qr`                                  |
+| name          | string | Label entered to identify the QR code.                              |
+| usage*          | string | Indicates if the QR code should be allowed to accept single payment or multiple payments i.e, `single_use`/`multiple_use`     |
+| fixed_amount          | boolean | Indicates if the QR should accept payments of specific amounts or any amount. |
+| payment_amount(* mandatory if fixed_amount is true)          | integer | Indicates if the QR should accept payments of specific amounts or any amount. |
+| customer_id          | string | Unique identifier of the customer the QR code is linked with |
+| description          | string | A brief description about the QR code. |
+| close_by          | integer | UNIX timestamp at which the QR code is scheduled to be automatically closed. The time must be at least 15 minutes after the current time.  |
+| notes          | object | Key-value pair that can be used to store additional information about the QR code. Maximum 15 key-value pairs, 256 characters (maximum) each. |
+
+**Response:**
+```json
+{
+  "id": "qr_HMsVL8HOpbMcjU",
+  "entity": "qr_code",
+  "created_at": 1623660301,
+  "name": "Store_1",
+  "usage": "single_use",
+  "type": "upi_qr",
+  "image_url": "https://rzp.io/i/BWcUVrLp",
+  "payment_amount": 300,
+  "status": "active",
+  "description": "For Store 1",
+  "fixed_amount": true,
+  "payments_amount_received": 0,
+  "payments_count_received": 0,
+  "notes": {
+    "purpose": "Test UPI QR code notes"
+  },
+  "customer_id": "cust_HKsR5se84c5LTO",
+  "close_by": 1681615838
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create Qr code with GST
+
+```js
+instance.qrCode.create({
+  type: "upi_qr",
+  name: "Store_1",
+  usage: "single_use",
+  fixed_amount: true,
+  payment_amount: 300,
+  description: "For Store 1",
+  customer_id: "cust_HKsR5se84c5LTO",
+  close_by: 1681615838,
+  notes: {
+    purpose: "Test UPI QR code notes"
+  },
+  tax_invoice: {
+    number: "INV001",
+    date: 1589994898,
+    customer_name: "Gaurav Kumar",
+    business_gstin: "06AABCU9605R1ZR",
+    gst_amount: 4000,
+    cess_amount: 0,
+    supply_type: "interstate"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| type*          | string | The type of QR code i.e, `upi_qr`/`bharat_qr`                                  |
+| name          | string | Label entered to identify the QR code.                              |
+| usage*          | string | Indicates if the QR code should be allowed to accept single payment or multiple payments i.e, `single_use`/`multiple_use`     |
+| fixed_amount          | boolean | Indicates if the QR should accept payments of specific amounts or any amount. |
+| payment_amount(* mandatory if fixed_amount is true)          | integer | Indicates if the QR should accept payments of specific amounts or any amount. |
+| customer_id          | string | Unique identifier of the customer the QR code is linked with |
+| description          | string | A brief description about the QR code. |
+| close_by          | integer | UNIX timestamp at which the QR code is scheduled to be automatically closed. The time must be at least 15 minutes after the current time.  |
+| notes          | object | Key-value pair that can be used to store additional information about the QR code. Maximum 15 key-value pairs, 256 characters (maximum) each. |
+| tax_invoice          | object | This block contains information about the invoices. If not provided, the transaction will default to non-GST compliant UPI flow. |
+
+**Response:**
+```json
+{
+  "id": "qr_HMsVL8HOpbMcjU",
+  "entity": "qr_code",
+  "created_at": 1623660301,
+  "name": "Store_1",
+  "usage": "single_use",
+  "type": "upi_qr",
+  "image_url": "https://rzp.io/i/BWcUVrLp",
+  "payment_amount": 300,
+  "status": "active",
+  "description": "For Store 1",
+  "fixed_amount": true,
+  "payments_amount_received": 0,
+  "payments_count_received": 0,
+  "notes": {
+    "purpose": "Test UPI QR code notes"
+  },
+  "customer_id": "cust_HKsR5se84c5LTO",
+  "close_by": 1681615838,
+  "tax_invoice": {
+    "number": "INV001",
+    "date": 1589994898,
+    "customer_name": "Gaurav Kumar",
+    "business_gstin": "06AABCU9605R1ZR",
+    "gst_amount": 4000,
+    "cess_amount": 0,
+    "supply_type": "interstate"
+  }
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all Qr code
+
+```js
+instance.qrCode.all()
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "qr_HO2jGkWReVBMNu",
+      "entity": "qr_code",
+      "created_at": 1623914648,
+      "name": "Store_1",
+      "usage": "single_use",
+      "type": "upi_qr",
+      "image_url": "https://rzp.io/i/w2CEwYmkAu",
+      "payment_amount": 300,
+      "status": "active",
+      "description": "For Store 1",
+      "fixed_amount": true,
+      "payments_amount_received": 0,
+      "payments_count_received": 0,
+      "notes": {
+        "purpose": "Test UPI QR code notes"
+      },
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "close_by": 1681615838,
+      "closed_at": null,
+      "close_reason": null
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a Qr code
+
+```js
+instance.qrCode.fetch(qrCodeId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| qrCodeId  | string | The id of the qr code to be fetched  |
+
+**Response:**
+```json
+{
+  "id": "qr_HO2r1MDprYtWRT",
+  "entity": "qr_code",
+  "created_at": 1623915088,
+  "name": "Store_1",
+  "usage": "single_use",
+  "type": "upi_qr",
+  "image_url": "https://rzp.io/i/oCswTOcCo",
+  "payment_amount": 300,
+  "status": "active",
+  "description": "For Store 1",
+  "fixed_amount": true,
+  "payments_amount_received": 0,
+  "payments_count_received": 0,
+  "notes": {
+    "purpose": "Test UPI QR code notes"
+  },
+  "customer_id": "cust_HKsR5se84c5LTO",
+  "close_by": 1681615838,
+  "closed_at": null,
+  "close_reason": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a Qr code for customer id
+
+```js
+ instance.qrCode.all({"customer_id":customerId})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*  | string | The id of the customer to which qr code need to be fetched  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "qr_HMsgvioW64f0vh",
+      "entity": "qr_code",
+      "created_at": 1623660959,
+      "name": "Store_1",
+      "usage": "single_use",
+      "type": "upi_qr",
+      "image_url": "https://rzp.io/i/DTa2eQR",
+      "payment_amount": 300,
+      "status": "active",
+      "description": "For Store 1",
+      "fixed_amount": true,
+      "payments_amount_received": 0,
+      "payments_count_received": 0,
+      "notes": {
+        "purpose": "Test UPI QR code notes"
+      },
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "close_by": 1681615838
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a Qr code for payment id
+
+```js
+ instance.qrCode.all({"payment_id":paymentId})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentId*  | string | The id of the payment to which qr code need to be fetched  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "qr_HMsqRoeVwKbwAF",
+      "entity": "qr_code",
+      "created_at": 1623661499,
+      "name": "Fresh Groceries",
+      "usage": "multiple_use",
+      "type": "upi_qr",
+      "image_url": "https://rzp.io/i/eI9XD54Q",
+      "payment_amount": null,
+      "status": "active",
+      "description": "Buy fresh groceries",
+      "fixed_amount": false,
+      "payments_amount_received": 1000,
+      "payments_count_received": 1,
+      "notes": [],
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "close_by": 1624472999,
+      "close_reason": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch Payments for a QR Code
+
+```js
+instance.qrCode.fetchAllPayments(qrCodeId, options)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| qrCodeId*  | string | The id of the qr code to which payment where made |
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "pay_HMtDKn3TnF4D8x",
+      "entity": "payment",
+      "amount": 500,
+      "currency": "INR",
+      "status": "captured",
+      "order_id": null,
+      "invoice_id": null,
+      "international": false,
+      "method": "upi",
+      "amount_refunded": 0,
+      "refund_status": null,
+      "captured": true,
+      "description": "QRv2 Payment",
+      "card_id": null,
+      "bank": null,
+      "wallet": null,
+      "vpa": "gauri.kumari@okhdfcbank",
+      "email": "gauri.kumari@example.com",
+      "contact": "+919999999999",
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "notes": [],
+      "fee": 0,
+      "tax": 0,
+      "error_code": null,
+      "error_description": null,
+      "error_source": null,
+      "error_step": null,
+      "error_reason": null,
+      "acquirer_data": {
+        "rrn": "116514257019"
+      },
+      "created_at": 1623662800
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Close a QR Code
+
+```js
+instance.qrCode.close(qrCodeId);
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| qrCodeId*  | string | The id of the qr code to be closed |
+
+**Response:**
+```json
+{
+  "id": "qr_HMsVL8HOpbMcjU",
+  "entity": "qr_code",
+  "created_at": 1623660301,
+  "name": "Store_1",
+  "usage": "single_use",
+  "type": "upi_qr",
+  "image_url": "https://rzp.io/i/BWcUVrLp",
+  "payment_amount": 300,
+  "status": "closed",
+  "description": "For Store 1",
+  "fixed_amount": true,
+  "payments_amount_received": 0,
+  "payments_count_received": 0,
+  "notes": {
+    "purpose": "Test UPI QR code notes"
+  },
+  "customer_id": "cust_HKsR5se84c5LTO",
+  "close_by": 1681615838,
+  "closed_at": 1623660445,
+  "close_reason": "on_demand"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/qr-codes/)**
\ No newline at end of file
diff --git a/documents/refund.md b/documents/refund.md
new file mode 100644
index 00000000..d467bf02
--- /dev/null
+++ b/documents/refund.md
@@ -0,0 +1,295 @@
+## Refunds
+
+### Create a normal refund
+
+```js
+instance.payments.fetch(paymentId{
+  "amount": "100",
+  "speed": "normal",
+  "notes": {
+    "notes_key_1": "Beam me up Scotty.",
+    "notes_key_2": "Engage"
+  },
+  "receipt": "Receipt No. 31"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+|  paymentId*   | string      | The id of the payment                       |
+|  amount       | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |                       |
+|  speed        | string      | Here, it must be normal                |
+|  notes        | array       | A key-value pair                |
+|  receipt      | string      | A unique identifier provided by you for your internal reference. |
+
+**Response:**
+```json
+{
+  "id": "rfnd_FP8QHiV938haTz",
+  "entity": "refund",
+  "amount": 500100,
+  "receipt": "Receipt No. 31",
+  "currency": "INR",
+  "payment_id": "pay_FCXKPFtYfPXJPy",
+  "notes": [],
+  "acquirer_data": {
+    "arn": null
+  },
+  "created_at": 1597078866,
+  "batch_id": null,
+  "status": "processed",
+  "speed_processed": "normal"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an instant refund
+
+```js
+instance.payments.refund(paymentId,{
+  "amount": "100",
+  "speed": "optimum",
+  "receipt": "Receipt No. 31"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+|  paymentId*  | string      | The id of the payment                       |
+|  amount       | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+|  speed*        | string      | Here, it must be optimum                    |
+|  receipt      | string      | A unique identifier provided by you for your internal reference. |
+
+**Response:**
+```json
+{
+  "id": "rfnd_FP8R8EGjGbPkVb",
+  "entity": "refund",
+  "amount": 500100,
+  "currency": "INR",
+  "payment_id": "pay_FC8MmhMBZPKDHF",
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "receipt": "Receipt No. 31",
+  "acquirer_data": {
+    "arn": null
+  },
+  "created_at": 1597078914,
+  "batch_id": null,
+  "status": "processed",
+  "speed_requested": "optimum"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch multiple refunds for a payment
+
+```js
+instance.payments.fetchMultipleRefund(paymentId,option)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| paymentId*  | string      | The id of the payment                       |
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Refund:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "rfnd_FP8DDKxqJif6ca",
+      "entity": "refund",
+      "amount": 300100,
+      "currency": "INR",
+      "payment_id": "pay_FIKOnlyii5QGNx",
+      "notes": {
+        "comment": "Comment for refund"
+      },
+      "receipt": null,
+      "acquirer_data": {
+        "arn": "10000000000000"
+      },
+      "created_at": 1597078124,
+      "batch_id": null,
+      "status": "processed",
+      "speed_processed": "normal",
+      "speed_requested": "optimum"
+    }
+  ]
+}
+ ```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a specific refund for a payment
+```js
+instance.payments.fetch(paymentId,refundId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+|  paymentId*   | string      | The id of the payment to be fetched        |
+|  refundId*   | string      | The id of the refund to be fetched           |
+
+**Response:**
+```json
+{
+  "id": "rfnd_FP8DDKxqJif6ca",
+  "entity": "refund",
+  "amount": 300100,
+  "currency": "INR",
+  "payment_id": "pay_FIKOnlyii5QGNx",
+  "notes": {
+    "comment": "Comment for refund"
+  },
+  "receipt": null,
+  "acquirer_data": {
+    "arn": "10000000000000"
+  },
+  "created_at": 1597078124,
+  "batch_id": null,
+  "status": "processed",
+  "speed_processed": "normal",
+  "speed_requested": "optimum"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all refunds
+```js
+instance.refunds.all(options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 2,
+  "items": [
+    {
+      "id": "rfnd_FFX6AnnIN3puqW",
+      "entity": "refund",
+      "amount": 88800,
+      "currency": "INR",
+      "payment_id": "pay_FFX5FdEYx8jPwA",
+      "notes": {
+        "comment": "Issuing an instant refund"
+      },
+      "receipt": null,
+      "acquirer_data": {},
+      "created_at": 1594982363,
+      "batch_id": null,
+      "status": "processed",
+      "speed_processed": "optimum",
+      "speed_requested": "optimum"
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch particular refund
+```js
+instance.refunds.fetch(refundId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+|  refundId*   | string      | The id of the refund to be fetched           |
+
+**Response:**
+```json
+{
+  "id": "rfnd_EqWThTE7dd7utf",
+  "entity": "refund",
+  "amount": 6000,
+  "currency": "INR",
+  "payment_id": "pay_EpkFDYRirena0f",
+  "notes": {
+    "comment": "Issuing an instant refund"
+  },
+  "receipt": null,
+  "acquirer_data": {
+    "arn": "10000000000000"
+  },
+  "created_at": 1589521675,
+  "batch_id": null,
+  "status": "processed",
+  "speed_processed": "optimum",
+  "speed_requested": "optimum"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Update the refund
+```js
+instance.refunds.edit({
+  "notes": {
+    "notes_key_1": "Beam me up Scotty.",
+    "notes_key_2": "Engage"
+  }
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| refundId*   | string    | The id of the refund to be fetched     |
+| notes* | array  | A key-value pair                                 |
+
+**Response:**
+```json
+{
+  "id": "rfnd_FP8DDKxqJif6ca",
+  "entity": "refund",
+  "amount": 300100,
+  "currency": "INR",
+  "payment_id": "pay_FIKOnlyii5QGNx",
+  "notes": {
+    "notes_key_1": "Beam me up Scotty.",
+    "notes_key_2": "Engage"
+  },
+  "receipt": null,
+  "acquirer_data": {
+    "arn": "10000000000000"
+  },
+  "created_at": 1597078124,
+  "batch_id": null,
+  "status": "processed",
+  "speed_processed": "normal",
+  "speed_requested": "optimum"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/refunds/)**
\ No newline at end of file
diff --git a/documents/registerEmandate.md b/documents/registerEmandate.md
new file mode 100644
index 00000000..d2906508
--- /dev/null
+++ b/documents/registerEmandate.md
@@ -0,0 +1,420 @@
+## Register emandate and charge first payment together
+
+### Create customer
+```js
+instance.customers.create({
+  name: "Gaurav Kumar",
+  contact: 9123456780,
+  email: "gaurav.kumar@example.com",
+  fail_existing: 0,
+  gstin: "29XAbbA4369J1PA",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| fail_existing | string | If a customer with the same details already exists, the request throws an exception by default. Possible value is `0` or `1`|
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create order
+
+```js
+instance.orders.create({
+  amount: 100,
+  currency: "INR",
+  method: "emandate",
+  receipt: "Receipt No. 5",
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Engage"
+  },
+  token: {
+    first_payment_amount: 10000,
+    auth_type: "netbanking",
+    max_amount: 9999900,
+    expire_at: 4102444799,
+    notes: {
+      "note_key 1": "Tea, Earl Grey… decaf.",
+      "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| customerId*   | string      | The id of the customer to be fetched |
+| method*      | string  | Payment method used to make the registration transaction. Possible value is `emandate`.  |
+| receipt      | string  | Your system order reference id.  |
+| token  | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#112-create-an-order) are supported |
+| notes | object  | A key-value pair  |
+
+**Response:**
+For create order response please click [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#112-create-an-order)
+
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#113-create-an-authorization-payment) for authorization payment
+
+-----------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscriptions.createRecurringPayment({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  type: "link",
+  amount: 100,
+  currency: "INR",
+  description: "Registration Link for Gaurav Kumar",
+  subscription_registration: {
+    first_payment_amount: 100,
+    method: "emandate",
+    auth_type: "netbanking",
+    max_amount: 50000,
+    expire_at: 1634215992,
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    }
+  },
+  receipt: "Receipt No. 5",
+  email_notify: 1,
+  sms_notify: 1,
+  expire_by: 1634215992,
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                   |
+|-----------------|---------|---------------------------------------------------------------|
+| customer   | object      | Details of the customer to whom the registration link will be sent. |
+| type*  | object | the value is `link`. |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| description*  | string      | A brief description of the payment.   |
+| subscription_registration   | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#121-create-a-registration-link) are supported  |
+| receipt      | string  | Your system order reference id.  |
+| sms_notify  | boolean  | SMS notifications are to be sent by Razorpay (default : 1)  |
+| email_notify | boolean  | Email notifications are to be sent by Razorpay (default : 1)  |
+| expire_by    | integer | The timestamp, in Unix format, till when the customer can make the authorization payment. |
+| notes | object  | A key-value pair  |
+
+**Response:**
+For create registration link response please click [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#12-using-a-registration-link)
+-------------------------------------------------------------------------------------------------------
+
+## Create an order to charge the customer
+
+```js
+instance.orders.create({
+  "amount": "100",
+  "currency": "INR",
+  "receipt": "Receipt No. 1",
+  "notes": {
+    "key1": "value3",
+    "key2": "value2"
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| receipt      | string  | Your system order reference id.  |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":1000,
+   "amount_paid":0,
+   "amount_due":1000,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1579782776
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Create a recurring payment
+
+```js
+instance.payments.createRecurringPayment({
+  email: "gaurav.kumar@example.com",
+  contact: 9123456789,
+  amount: 1000,
+  currency: "INR",
+  recurring: 1,
+  description: "Creating recurring payment for Gaurav Kumar",
+  notes: {
+    key1: "value3",
+    key2: "value2"
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*   | string      | The customer's email address |
+| contact*   | string      | The customer's phone number |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| orderId*   | string      | The id of the order to be fetched |
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+| recurring*   | boolean      | Possible values is `0` or `1` |
+| description  | string      | A brief description of the payment.   |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId,medium)
+```
+**Parameters:**
+
+| Name            | Type    |Description      |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+| medium*   | string      | Possible values are `sms` or `email` |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Cancel registration link
+
+```js
+instance.invoices.cancel(invoiceId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+
+**Response:**
+```json
+{
+    "id": "inv_FHrfRupD2ouKIt",
+    "entity": "invoice",
+    "receipt": "Receipt No. 1",
+    "invoice_number": "Receipt No. 1",
+    "customer_id": "cust_BMB3EwbqnqZ2EI",
+    "customer_details": {
+        "id": "cust_BMB3EwbqnqZ2EI",
+        "name": "Gaurav Kumar",
+        "email": "gaurav.kumar@example.com",
+        "contact": "9123456780",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": "Gaurav Kumar",
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "9123456780"
+    },
+    "order_id": "order_FHrfRw4TZU5Q2L",
+    "line_items": [],
+    "payment_id": null,
+    "status": "cancelled",
+    "expire_by": 4102444799,
+    "issued_at": 1595491479,
+    "paid_at": null,
+    "cancelled_at": 1595491488,
+    "expired_at": null,
+    "sms_status": "sent",
+    "email_status": "sent",
+    "date": 1595491479,
+    "terms": null,
+    "partial_payment": false,
+    "gross_amount": 100,
+    "tax_amount": 0,
+    "taxable_amount": 0,
+    "amount": 100,
+    "amount_paid": 0,
+    "amount_due": 100,
+    "currency": "INR",
+    "currency_symbol": "₹",
+    "description": "Registration Link for Gaurav Kumar",
+    "notes": {
+        "note_key 1": "Beam me up Scotty",
+        "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "comment": null,
+    "short_url": "https://rzp.io/i/QlfexTj",
+    "view_less": true,
+    "billing_start": null,
+    "billing_end": null,
+    "type": "link",
+    "group_taxes_discounts": false,
+    "created_at": 1595491480,
+    "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Fetch token by payment id
+
+```js
+instance.payments.fetch(paymentId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched |
+
+**Response:**
+For fetch token by payment id response please click [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/#21-fetch-token-by-payment-id)
+
+-------------------------------------------------------------------------------------------------------
+
+## Fetch tokens by customer id
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "token_FHf94Uym9tdYFJ",
+      "entity": "token",
+      "token": "2wDPM7VAlXtjAR",
+      "bank": "HDFC",
+      "wallet": null,
+      "method": "emandate",
+      "vpa": null,
+      "recurring": true,
+      "recurring_details": {
+        "status": "confirmed",
+        "failure_reason": null
+      },
+      "auth_type": "netbanking",
+      "mrn": null,
+      "used_at": 1595447381,
+      "created_at": 1595447381,
+      "bank_details": {
+        "beneficiary_name": "Gaurav Kumar",
+        "account_number": "1121431121541121",
+        "ifsc": "HDFC0000001",
+        "account_type": "savings"
+      },
+      "max_amount": 9999900,
+      "expired_at": 1689971140,
+      "dcc_enabled": false
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Delete tokens
+
+```js
+instance.customers.deleteToken(customerId, tokenId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/emandate/auto-debit/)**
\ No newline at end of file
diff --git a/documents/registerNach.md b/documents/registerNach.md
new file mode 100644
index 00000000..ab74bae2
--- /dev/null
+++ b/documents/registerNach.md
@@ -0,0 +1,632 @@
+## Register nach and charge first payment together
+
+### Create customer
+```js
+instance.customers.create({
+  name: "Gaurav Kumar",
+  contact: 9123456780,
+  email: "gaurav.kumar@example.com",
+  fail_existing: 0,
+  gstin: "29XAbbA4369J1PA",
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| fail_existing | string | If a customer with the same details already exists, the request throws an exception by default. Possible value is `0` or `1`|
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create Order
+
+```js
+instance.orders.create({
+  amount: 100,
+  currency: "INR",
+  method: "nach",
+  receipt: "Receipt No. 5",
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  token: {
+    first_payment_amount: 10000,
+    auth_type: "physical",
+    max_amount: 50000,
+    expire_at: 1634215992,
+    notes: {
+      "note_key 1": "Tea, Earl Grey… decaf.",
+      "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    },
+    nach: {
+      form_reference1: "Recurring Payment for Gaurav Kumar",
+      form_reference2: "Method Paper NACH",
+      description: "Paper NACH Gaurav Kumar"
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| customerId*   | string      | The id of the customer to be fetched |
+| method*      | string  | Payment method used to make the registration transaction. Possible value is `nach`.  |
+| receipt      | string  | Your system order reference id.  |
+| token  | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/paper-nach/auto-debit/#112-create-an-order) are supported |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+  "id":"order_1Aa00000000001",
+  "entity":"order",
+  "amount":0,
+  "amount_paid":0,
+  "amount_due":0,
+  "currency":"INR",
+  "receipt":"rcptid #10",
+  "offer_id":null,
+  "offers":{
+    "entity":"collection",
+    "count":0,
+    "items":[]
+  },
+  "status":"created",
+  "attempts":0,
+  "notes": {
+    "notes_key_1": "Beam me up Scotty",
+    "notes_key_2": "Engage"
+  },
+  "created_at":1579775420,
+  "token":{
+    "method":"nach",
+    "notes": {
+      "notes_key_1": "Tea, Earl Grey, Hot",
+      "notes_key_2": "Tea, Earl Grey… decaf."
+    },
+    "recurring_status":null,
+    "failure_reason":null,
+    "currency":"INR",
+    "max_amount":10000000,
+    "auth_type":"physical",
+    "expire_at":1580480689,
+    "nach":{
+      "create_form":true,
+      "form_reference1":"Recurring Payment for Gaurav Kumar",
+      "form_reference2":"Method Paper NACH",
+      "prefilled_form":"https://rzp.io/i/bitw",
+      "upload_form_url":"https://rzp.io/i/gts",
+      "description":"Paper NACH Gaurav Kumar"
+    },
+    "bank_account":{
+      "ifsc":"HDFC0000001",
+      "bank_name":"HDFC Bank",
+      "name":"Gaurav Kumar",
+      "account_number":"11214311215411",
+      "account_type":"savings",
+      "beneficiary_email":"gaurav.kumar@example.com",
+      "beneficiary_mobile":"9876543210"
+    },
+    "first_payment_amount":10000
+  }
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/paper-nach/auto-debit/#113-create-an-authorization-payment) for authorization payment
+
+-----------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscriptions.createRecurringPayment({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  amount: 100,
+  type: "link",
+  currency: "INR",
+  description: "Registration Link for Gaurav Kumar",
+  subscription_registration: {
+    first_payment_amount: 100,
+    method: "nach",
+    auth_type: "physical",
+    max_amount: 50000,
+    expire_at: 1634215992,
+    bank_account: {
+      beneficiary_name: "Gaurav Kumar",
+      account_number: 11214311215411,
+      account_type: "savings",
+      ifsc_code: "HDFC0001233"
+    },
+    nach: {
+      form_reference1: "Recurring Payment for Gaurav Kumar",
+      form_reference2: "Method Paper NACH"
+    }
+  },
+  receipt: "Receipt No. 5",
+  email_notify: 1,
+  sms_notify: 1,
+  expire_by: 1634215992,
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                   |
+|-----------------|---------|---------------------------------------------------------------|
+| customer   | object      | Details of the customer to whom the registration link will be sent. |
+| type*  | object | the value is `link`. |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| description*  | string      | A brief description of the payment.   |
+| subscription_registration   | object  | All keys listed [here](https://razorpay.com/docs/api/recurring-payments/paper-nach/auto-debit/#121-create-a-registration-link) are supported  |
+| receipt      | string  | Your system order reference id.  |
+| sms_notify  | boolean  | SMS notifications are to be sent by Razorpay (default : 1)  |
+| email_notify | boolean  | Email notifications are to be sent by Razorpay (default : 1)  |
+| expire_by    | integer | The timestamp, in Unix format, till when the customer can make the authorization payment. |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+    "id": "inv_FHrZiAubEzDdaq",
+    "entity": "invoice",
+    "receipt": "Receipt No. 27",
+    "invoice_number": "Receipt No. 27",
+    "customer_id": "cust_BMB3EwbqnqZ2EI",
+    "customer_details": {
+        "id": "cust_BMB3EwbqnqZ2EI",
+        "name": "Gaurav Kumar",
+        "email": "gaurav.kumar@example.com",
+        "contact": "9123456780",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": "Gaurav Kumar",
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "9123456780"
+    },
+    "order_id": "order_FHrZiBOkWHZPOp",
+    "line_items": [],
+    "payment_id": null,
+    "status": "issued",
+    "expire_by": 1647483647,
+    "issued_at": 1595491154,
+    "paid_at": null,
+    "cancelled_at": null,
+    "expired_at": null,
+    "sms_status": "sent",
+    "email_status": "sent",
+    "date": 1595491154,
+    "terms": null,
+    "partial_payment": false,
+    "gross_amount": 0,
+    "tax_amount": 0,
+    "taxable_amount": 0,
+    "amount": 0,
+    "amount_paid": 0,
+    "amount_due": 0,
+    "currency": "INR",
+    "currency_symbol": "₹",
+    "description": "12 p.m. Meals",
+    "notes": {
+        "note_key 1": "Beam me up Scotty",
+        "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "comment": null,
+    "short_url": "https://rzp.io/i/bzDYbNg",
+    "view_less": true,
+    "billing_start": null,
+    "billing_end": null,
+    "type": "link",
+    "group_taxes_discounts": false,
+    "created_at": 1595491154,
+    "idempotency_key": null,
+    "token": {
+        "method": "nach",
+        "notes": {
+            "note_key 1": "Beam me up Scotty",
+            "note_key 2": "Tea. Earl Gray. Hot."
+        },
+        "recurring_status": null,
+        "failure_reason": null,
+        "currency": "INR",
+        "max_amount": 50000,
+        "auth_type": "physical",
+        "expire_at": 1947483647,
+        "nach": {
+            "create_form": true,
+            "form_reference1": "Recurring Payment for Gaurav Kumar",
+            "form_reference2": "Method Paper NACH",
+            "prefilled_form": "https://rzp.io/i/exdIzYN",
+            "upload_form_url": "https://rzp.io/i/bzDYbNg",
+            "description": "12 p.m. Meals"
+        },
+        "bank_account": {
+            "ifsc": "HDFC0001233",
+            "bank_name": "HDFC Bank",
+            "name": "Gaurav Kumar",
+            "account_number": "11214311215411",
+            "account_type": "savings",
+            "beneficiary_email": "gaurav.kumar@example.com",
+            "beneficiary_mobile": "9123456780"
+        },
+        "first_payment_amount": 0
+    },
+    "nach_form_url": "https://rzp.io/i/exdIzYN"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Create an order to charge the customer
+
+```js
+instance.orders.create({
+  amount: 100,
+  currency: "INR",
+  receipt: "Receipt No. 1",
+  notes: {
+    key1: "value3",
+    key2: "value2"
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| receipt      | string  | Your system order reference id.  |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":1000,
+   "amount_paid":0,
+   "amount_due":1000,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1579782776
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Create a recurring payment
+
+```js
+instance.payments.createRecurringPayment({
+  "email": "gaurav.kumar@example.com",
+  "contact": "9123456789",
+  "amount": 1000,
+  "currency": "INR",
+  "recurring": "1",
+  "description": "Creating recurring payment for Gaurav Kumar",
+  "notes": {
+    "key1": "value3",
+    "key2": "value2"
+  }
+})
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*   | string      | The customer's email address |
+| contact*   | string      | The customer's phone number |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+| orderId*   | string      | The id of the order to be fetched |
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+| recurring*   | boolean      | Possible values is `0` or `1` |
+| description  | string      | A brief description of the payment.   |
+| notes | object  | A key-value pair  |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId,medium)
+```
+**Parameters:**
+
+| Name            | Type    |Description      |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+| medium*   | string      | Possible values are `sms` or `email` |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+## Cancel registration link
+
+```js
+instance.invoices.cancel(invoiceId);
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*   | string      | The id of the invoice to be fetched |
+
+**Response:**
+```json
+{
+  "id": "inv_FHrZiAubEzDdaq",
+  "entity": "invoice",
+  "receipt": "Receipt No. 27",
+  "invoice_number": "Receipt No. 27",
+  "customer_id": "cust_BMB3EwbqnqZ2EI",
+  "customer_details": {
+    "id": "cust_BMB3EwbqnqZ2EI",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9123456780",
+    "gstin": null,
+    "billing_address": null,
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9123456780"
+  },
+  "order_id": "order_FHrZiBOkWHZPOp",
+  "line_items": [],
+  "payment_id": null,
+  "status": "cancelled",
+  "expire_by": 1647483647,
+  "issued_at": 1595491154,
+  "paid_at": null,
+  "cancelled_at": 1595491339,
+  "expired_at": null,
+  "sms_status": "sent",
+  "email_status": "sent",
+  "date": 1595491154,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 0,
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "amount": 0,
+  "amount_paid": 0,
+  "amount_due": 0,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "12 p.m. Meals",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/bzDYbNg",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "link",
+  "group_taxes_discounts": false,
+  "created_at": 1595491154,
+  "idempotency_key": null,
+  "token": {
+    "method": "nach",
+    "notes": {
+      "note_key 1": "Beam me up Scotty",
+      "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "recurring_status": null,
+    "failure_reason": null,
+    "currency": "INR",
+    "max_amount": 50000,
+    "auth_type": "physical",
+    "expire_at": 1947483647,
+    "nach": {
+      "create_form": true,
+      "form_reference1": "Recurring Payment for Gaurav Kumar",
+      "form_reference2": "Method Paper NACH",
+      "prefilled_form": "https://rzp.io/i/tSYd5aV",
+      "upload_form_url": "https://rzp.io/i/bzDYbNg",
+      "description": "12 p.m. Meals"
+    },
+    "bank_account": {
+      "ifsc": "HDFC0001233",
+      "bank_name": "HDFC Bank",
+      "name": "Gaurav Kumar",
+      "account_number": "11214311215411",
+      "account_type": "savings",
+      "beneficiary_email": "gaurav.kumar@example.com",
+      "beneficiary_mobile": "9123456780"
+    },
+    "first_payment_amount": 0
+  },
+  "nach_form_url": "https://rzp.io/i/tSYd5aV"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Fetch token by payment id
+
+```js
+instance.payments.fetch(paymentId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched |
+
+**Response:**
+```json
+{
+  "id": "pay_EnLNTjINiPkMEZ",
+  "entity": "payment",
+  "amount": 0,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_EnLLfglmKksr4K",
+  "invoice_id": "inv_EnLLfgCzRfcMuh",
+  "international": false,
+  "method": "nach",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": "Invoice #inv_EnLLfgCzRfcMuh",
+  "card_id": null,
+  "bank": "UTIB",
+  "wallet": null,
+  "vpa": null,
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_EnLNTnn7uyRg5V",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {},
+  "created_at": 1588827564
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Fetch tokens by customer id
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "token_EhYgIE3pOyMQpD",
+      "entity": "token",
+      "token": "3mQ5Czc6APNppI",
+      "bank": "HDFC",
+      "wallet": null,
+      "method": "nach",
+      "vpa": null,
+      "recurring": true,
+      "recurring_details": {
+        "status": "confirmed",
+        "failure_reason": null
+      },
+      "auth_type": "physical",
+      "mrn": null,
+      "used_at": 1587564373,
+      "created_at": 1587564373,
+      "dcc_enabled": false
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+## Delete tokens
+
+```js
+instance.customers.deleteToken(customerId,tokenId)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customerId*   | string      | The id of the customer to be fetched |
+| tokenId*   | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/paper-nach/auto-debit/)**
\ No newline at end of file
diff --git a/documents/settlement.md b/documents/settlement.md
new file mode 100644
index 00000000..84e4780f
--- /dev/null
+++ b/documents/settlement.md
@@ -0,0 +1,540 @@
+## Settlements
+
+### Fetch all  settlements
+
+```js
+instance.settlements.all(options)
+```
+
+**Parameters:**
+
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the settlement were created  |
+| to    | timestamp | timestamp before which the settlement were created |
+| count | integer   | number of settlements to fetch (default: 10)        |
+| skip  | integer   | number of settlements to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "setl_DGlQ1Rj8os78Ec",
+      "entity": "settlement",
+      "amount": 9973635,
+      "status": "processed",
+      "fees": 471699,
+      "tax": 42070,
+      "utr": "1568176960vxp0rj",
+      "created_at": 1568176960
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch a settlement
+
+```js
+instance.settlements.fetch(settlementId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| settlementId* | string      | The id of the settlement to be fetched  |
+
+**Response:**
+```json
+{
+    "id": "setl_DGlQ1Rj8os78Ec",
+    "entity": "settlement",
+    "amount": 9973635,
+    "status": "processed",
+    "fees": 471699,
+    "tax": 42070,
+    "utr": "1568176960vxp0rj",
+    "created_at": 1568176960
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Settlement report for a month
+
+```js
+instance.settlements.reports({
+  year: 2020,
+  month: 9
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| year* | integer      | The year the settlement was received in the `YYYY` format. For example, `2020`   |
+| month* | integer      | The month the settlement was received in the `MM` format. For example, `09`   |
+| day | integer      | The date the settlement was received in the `DD` format. For example, `01`   |
+| count | integer   | number of settlements to fetch (default: 10)        |
+| skip  | integer   | number of settlements to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 4,
+  "items": [
+    {
+      "entity_id": "pay_DEXrnipqTmWVGE",
+      "type": "payment",
+      "debit": 0,
+      "credit": 97100,
+      "amount": 100000,
+      "currency": "INR",
+      "fee": 2900,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567692556,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": "Recurring Payment via Subscription",
+      "notes": "{}",
+      "payment_id": null,
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": "order_DEXrnRiR3SNDHA",
+      "order_receipt": null,
+      "method": "card",
+      "card_network": "MasterCard",
+      "card_issuer": "KARB",
+      "card_type": "credit",
+      "dispute_id": null
+    },
+    {
+      "entity_id": "rfnd_DGRcGzZSLyEdg1",
+      "type": "refund",
+      "debit": 242500,
+      "credit": 0,
+      "amount": 242500,
+      "currency": "INR",
+      "fee": 0,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1568107224,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": null,
+      "notes": "{}",
+      "payment_id": "pay_DEXq1pACSqFxtS",
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": "order_DEXpmZgffXNvuI",
+      "order_receipt": null,
+      "method": "card",
+      "card_network": "MasterCard",
+      "card_issuer": "KARB",
+      "card_type": "credit",
+      "dispute_id": null
+    },
+    {
+      "entity_id": "trf_DEUoCEtdsJgvl7",
+      "type": "transfer",
+      "debit": 100296,
+      "credit": 0,
+      "amount": 100000,
+      "currency": "INR",
+      "fee": 296,
+      "tax": 46,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567681786,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": null,
+      "notes": null,
+      "payment_id": "pay_DEApNNTR6xmqJy",
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": null,
+      "order_receipt": null,
+      "method": null,
+      "card_network": null,
+      "card_issuer": null,
+      "card_type": null,
+      "dispute_id": null
+    },
+    {
+      "entity_id": "adj_EhcHONhX4ChgNC",
+      "type": "adjustment",
+      "debit": 0,
+      "credit": 1012,
+      "amount": 1012,
+      "currency": "INR",
+      "fee": 0,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567681786,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "description": "test reason",
+      "notes": null,
+      "payment_id": null,
+      "settlement_utr": null,
+      "order_id": null,
+      "order_receipt": null,
+      "method": null,
+      "card_network": null,
+      "card_issuer": null,
+      "card_type": null,
+      "dispute_id": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Settlement recon
+
+```js
+instance.settlements.settlementRecon({
+  year: 2020,
+  month: 9,
+  day:11
+})
+```
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| year* | integer      | The year the settlement was received in the `YYYY` format. For example, `2020`   |
+| month* | integer      | The month the settlement was received in the `MM` format. For example, `09`   |
+| day | integer   | The day the settlement was received in the `DD` format. For example,      |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 4,
+  "items": [
+    {
+      "entity_id": "pay_DEXrnipqTmWVGE",
+      "type": "payment",
+      "debit": 0,
+      "credit": 97100,
+      "amount": 100000,
+      "currency": "INR",
+      "fee": 2900,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567692556,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": "Recurring Payment via Subscription",
+      "notes": "{}",
+      "payment_id": null,
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": "order_DEXrnRiR3SNDHA",
+      "order_receipt": null,
+      "method": "card",
+      "card_network": "MasterCard",
+      "card_issuer": "KARB",
+      "card_type": "credit",
+      "dispute_id": null
+    },
+    {
+      "entity_id": "rfnd_DGRcGzZSLyEdg1",
+      "type": "refund",
+      "debit": 242500,
+      "credit": 0,
+      "amount": 242500,
+      "currency": "INR",
+      "fee": 0,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1568107224,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": null,
+      "notes": "{}",
+      "payment_id": "pay_DEXq1pACSqFxtS",
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": "order_DEXpmZgffXNvuI",
+      "order_receipt": null,
+      "method": "card",
+      "card_network": "MasterCard",
+      "card_issuer": "KARB",
+      "card_type": "credit",
+      "dispute_id": null
+    },
+    {
+      "entity_id": "trf_DEUoCEtdsJgvl7",
+      "type": "transfer",
+      "debit": 100296,
+      "credit": 0,
+      "amount": 100000,
+      "currency": "INR",
+      "fee": 296,
+      "tax": 46,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567681786,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "credit_type": "default",
+      "description": null,
+      "notes": null,
+      "payment_id": "pay_DEApNNTR6xmqJy",
+      "settlement_utr": "1568176960vxp0rj",
+      "order_id": null,
+      "order_receipt": null,
+      "method": null,
+      "card_network": null,
+      "card_issuer": null,
+      "card_type": null,
+      "dispute_id": null
+    },
+    {
+      "entity_id": "adj_EhcHONhX4ChgNC",
+      "type": "adjustment",
+      "debit": 0,
+      "credit": 1012,
+      "amount": 1012,
+      "currency": "INR",
+      "fee": 0,
+      "tax": 0,
+      "on_hold": false,
+      "settled": true,
+      "created_at": 1567681786,
+      "settled_at": 1568176960,
+      "settlement_id": "setl_DGlQ1Rj8os78Ec",
+      "posted_at": null,
+      "description": "test reason",
+      "notes": null,
+      "payment_id": null,
+      "settlement_utr": null,
+      "order_id": null,
+      "order_receipt": null,
+      "method": null,
+      "card_network": null,
+      "card_issuer": null,
+      "card_type": null,
+      "dispute_id": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create on-demand settlement
+
+```js
+instance.settlements.createOndemandSettlement({
+  "amount": 1221,
+  "settle_full_balance": false,
+  "description": "Testing",
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| amount*| integer      | Maximum amount that can be settled  |
+| settle_full_balance* | boolean      | true or false   |
+| description | string   | The description may not be greater than 30 characters    |
+| notes   | object   | A key-value pair     |
+
+**Response:**
+```json
+{
+  "id": "setlod_FNj7g2YS5J67Rz",
+  "entity": "settlement.ondemand",
+  "amount_requested": 200000,
+  "amount_settled": 0,
+  "amount_pending": 199410,
+  "amount_reversed": 0,
+  "fees": 590,
+  "tax": 90,
+  "currency": "INR",
+  "settle_full_balance": false,
+  "status": "initiated",
+  "description": "Need this to make vendor payments.",
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1596771429,
+  "ondemand_payouts": {
+    "entity": "collection",
+    "count": 1,
+    "items": [
+      {
+        "id": "setlodp_FNj7g2cbvw8ueO",
+        "entity": "settlement.ondemand_payout",
+        "initiated_at": null,
+        "processed_at": null,
+        "reversed_at": null,
+        "amount": 200000,
+        "amount_settled": null,
+        "fees": 590,
+        "tax": 90,
+        "utr": null,
+        "status": "created",
+        "created_at": 1596771429
+      }
+    ]
+  }
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all on-demand settlements
+
+```js
+instance.settlements.fetchAllOndemandSettlement(options)
+```
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**<br>
+For all on-demand settlements response please click [here](https://razorpay.com/docs/api/settlements/#fetch-all-on-demand-settlements)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch on-demand settlement by ID
+
+```js
+instance.settlements.fetchOndemandSettlementById(settlementId);
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| settlementId* | string | Settlement Id of the On-demand settlement|
+
+**Response:**
+For on-demand settlement by ID response please click [here](https://razorpay.com/docs/api/settlements/#fetch-on-demand-settlements-by-id)
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch on-demand settlement by ID
+
+```js
+instance.settlements.all({'customer_id':'cust_HKsR5se84c5LTO'});
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| customer_id* | string | The id of the customer to be updated |
+
+**Response:**<br>
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "qr_HMsgvioW64f0vh",
+      "entity": "qr_code",
+      "created_at": 1623660959,
+      "name": "Store_1",
+      "usage": "single_use",
+      "type": "upi_qr",
+      "image_url": "https://rzp.io/i/DTa2eQR",
+      "payment_amount": 300,
+      "status": "active",
+      "description": "For Store 1",
+      "fixed_amount": true,
+      "payments_amount_received": 0,
+      "payments_count_received": 0,
+      "notes": {
+        "purpose": "Test UPI QR code notes"
+      },
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "close_by": 1681615838
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch QR Code for a Payment ID
+
+```js
+instance.settlements.all({'payment_id':'pay_Di5iqCqA1WEHq6'});
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| customer_id* | string | The id of the customer to be updated |
+
+**Response:**<br>
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "qr_HMsqRoeVwKbwAF",
+      "entity": "qr_code",
+      "created_at": 1623661499,
+      "name": "Fresh Groceries",
+      "usage": "multiple_use",
+      "type": "upi_qr",
+      "image_url": "https://rzp.io/i/eI9XD54Q",
+      "payment_amount": null,
+      "status": "active",
+      "description": "Buy fresh groceries",
+      "fixed_amount": false,
+      "payments_amount_received": 1000,
+      "payments_count_received": 1,
+      "notes": [],
+      "customer_id": "cust_HKsR5se84c5LTO",
+      "close_by": 1624472999,
+      "close_reason": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/settlements/)**
\ No newline at end of file
diff --git a/documents/subscription.md b/documents/subscription.md
new file mode 100644
index 00000000..f504538f
--- /dev/null
+++ b/documents/subscription.md
@@ -0,0 +1,726 @@
+## Subscriptions
+
+### Create subscription
+
+```js
+instance.subscriptions.create({
+  plan_id: "plan_7wAosPWtrkhqZw",
+  customer_notify: 1,
+  quantity: 5,
+  total_count: 6,
+  start_at: 1495995837,
+  addons: [
+    {
+      item: {
+        name: "Delivery charges",
+        amount: 30000,
+        currency: "INR"
+      }
+    }
+  ],
+  notes: {
+    key1: "value3",
+    key2: "value2"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| plan_id*          | string | The unique identifier for a plan that should be linked to the subscription.|
+| total_count*   | string | The number of billing cycles for which the customer should be charged  |
+| customer_notify    | boolean | Indicates whether the communication to the customer would be handled by you or us |
+| quantity    | integer | The number of times the customer should be charged the plan amount per invoice |
+| start_at    | integer | The timestamp, in Unix format, for when the subscription should start. If not passed, the subscription starts immediately after the authorization payment. |
+| expire_by    | integer | The timestamp, in Unix format, till when the customer can make the authorization payment. |
+| addons    | object | Object that contains details of any upfront amount you want to collect as part of the authorization transaction. |
+| notes          | object | Notes you can enter for the contact for future reference.   |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000001",
+  "status": "created",
+  "current_start": null,
+  "current_end": null,
+  "ended_at": null,
+  "quantity": 1,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at": 1580453311,
+  "start_at": 1580626111,
+  "end_at": 1583433000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 0,
+  "customer_notify": true,
+  "created_at": 1580280581,
+  "expire_by": 1580626111,
+  "short_url": "https://rzp.io/i/z3b1R61A9",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 5
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create subscription link
+
+```js
+instance.subscriptions.create({
+  plan_id: "plan_HoYg68p5kmuvzD",
+  total_count: 12,
+  quantity: 1,
+  expire_by: 1633237807,
+  customer_notify: 1,
+  addons: [
+    {
+      item: {
+        name: "Delivery charges",
+        amount: 30000,
+        currency: "INR"
+      }
+    }
+  ],
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf."
+  },
+  notify_info: {
+    notify_phone: 9123456789,
+    notify_email: "gaurav.kumar@example.com"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| plan_id*          | string | The unique identifier for a plan that should be linked to the subscription.|
+| total_count*   | string | The number of billing cycles for which the customer should be charged  |
+| customer_notify    | boolean | Indicates whether the communication to the customer would be handled by you or us |
+| quantity    | integer | The number of times the customer should be charged the plan amount per invoice |
+| start_at    | integer | The timestamp, in Unix format, for when the subscription should start. If not passed, the subscription starts immediately after the authorization payment. |
+| expire_by    | integer | The timestamp, in Unix format, till when the customer can make the authorization payment. |
+| addons    | object | Object that contains details of any upfront amount you want to collect as part of the authorization transaction. |
+| notes          | object | Notes you can enter for the contact for future reference.   |
+| notify_info          | object | The customer's email and phone number to which notifications are to be sent. (PN: Use this object only if you have set the `customer_notify` parameter to 1. That is, Razorpay sends notifications to the customer.)  |
+
+**Response:**
+```json
+{
+  "id":"sub_00000000000002",
+  "entity":"subscription",
+  "plan_id":"plan_00000000000001",
+  "status":"created",
+  "current_start":null,
+  "current_end":null,
+  "ended_at":null,
+  "quantity":1,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at":1580453311,
+  "start_at":1580453311,
+  "end_at":1587061800,
+  "auth_attempts":0,
+  "total_count":12,
+  "paid_count":0,
+  "customer_notify":true,
+  "created_at":1580283117,
+  "expire_by":1581013800,
+  "short_url":"https://rzp.io/i/m0y0f",
+  "has_scheduled_changes":false,
+  "change_scheduled_at":null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count":12
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all subscriptions
+
+```js
+instance.subscription.all(options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+| plan_id  | string   | The unique identifier of the plan for which you want to retrieve all the subscriptions    |
+
+**Response:**
+```json
+
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "sub_00000000000001",
+      "entity": "subscription",
+      "plan_id": "plan_00000000000001",
+      "customer_id": "cust_D00000000000001",
+      "status": "active",
+      "current_start": 1577355871,
+      "current_end": 1582655400,
+      "ended_at": null,
+      "quantity": 1,
+      "notes": {
+        "notes_key_1": "Tea, Earl Grey, Hot",
+        "notes_key_2": "Tea, Earl Grey… decaf."
+      },
+      "charge_at": 1577385991,
+      "offer_id": "offer_JHD834hjbxzhd38d",
+      "start_at": 1577385991,
+      "end_at": 1603737000,
+      "auth_attempts": 0,
+      "total_count": 6,
+      "paid_count": 1,
+      "customer_notify": true,
+      "created_at": 1577356081,
+      "expire_by": 1577485991,
+      "short_url": "https://rzp.io/i/z3b1R61A9",
+      "has_scheduled_changes": false,
+      "change_scheduled_at": null,
+      "remaining_count": 5
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch particular subscription
+
+```js
+instance.subscriptions.fetch(subscriptionId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be fetched  |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000001",
+  "customer_id": "cust_D00000000000001",
+  "status": "active",
+  "current_start": 1577355871,
+  "current_end": 1582655400,
+  "ended_at": null,
+  "quantity": 1,
+  "notes":{
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "charge_at": 1577385991,
+  "start_at": 1577385991,
+  "end_at": 1603737000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 1,
+  "customer_notify": true,
+  "created_at": 1577356081,
+  "expire_by": 1577485991,
+  "short_url": "https://rzp.io/i/z3b1R61A9",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 5
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Cancel particular subscription
+
+```js
+instance.subsciptions.cancel(subscriptionId,options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be cancelled  |
+| cancel_at_cycle_end  | boolean | Possible values:<br>0 (default): Cancel the subscription immediately. <br> 1: Cancel the subscription at the end of the current billing cycle.  |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000001",
+  "customer_id": "cust_D00000000000001",
+  "status": "cancelled",
+  "current_start": 1580453311,
+  "current_end": 1581013800,
+  "ended_at": 1580288092,
+  "quantity": 1,
+  "notes":{
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "charge_at": 1580453311,
+  "start_at": 1577385991,
+  "end_at": 1603737000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 1,
+  "customer_notify": true,
+  "created_at": 1580283117,
+  "expire_by": 1581013800,
+  "short_url": "https://rzp.io/i/z3b1R61A9",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 5
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Update particular subscription
+
+```js
+instance.subscriptions.update(subscriptionId,options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be updated  |
+| options  | object | All parameters listed [here](https://razorpay.com/docs/api/subscriptions/#update-a-subscription) for update   |
+
+**Response:**
+```json
+{
+  "id":"sub_00000000000002",
+  "entity":"subscription",
+  "plan_id":"plan_00000000000002",
+  "customer_id":"cust_00000000000002",
+  "status":"authenticated",
+  "current_start":null,
+  "current_end":null,
+  "ended_at":null,
+  "quantity":3,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at":1580453311,
+  "start_at":1580453311,
+  "end_at":1606588200,
+  "auth_attempts":0,
+  "total_count":6,
+  "paid_count":0,
+  "customer_notify":true,
+  "created_at":1580283807,
+  "expire_by":1580626111,
+  "short_url":"https://rzp.io/i/yeDkUKy",
+  "has_scheduled_changes":false,
+  "change_scheduled_at":null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count":6
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch details of pending update
+
+```js
+instance.subscription.pendingUpdate(subscriptionId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to fetch pending update  |
+
+**Response:**
+```json
+{
+  "id":"sub_00000000000001",
+  "entity":"subscription",
+  "plan_id":"plan_00000000000003",
+  "customer_id":"cust_00000000000001",
+  "status":"active",
+  "current_start":1580284732,
+  "current_end":1580841000,
+  "ended_at":null,
+  "quantity":25,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at":1580841000,
+  "start_at":1580284732,
+  "end_at":1611081000,
+  "auth_attempts":0,
+  "total_count":6,
+  "paid_count":1,
+  "customer_notify":true,
+  "created_at":1580284702,
+  "expire_by":1580626111,
+  "short_url":"https://rzp.io/i/fFWTkbf",
+  "has_scheduled_changes":true,
+  "change_scheduled_at":1557253800,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count":5
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Cancel a update
+
+```js
+instance.subscription.cancelScheduledChanges(subscriptionId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be cancel an update  |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000003",
+  "customer_id": "cust_00000000000001",
+  "status": "active",
+  "current_start": 1580284732,
+  "current_end": 1580841000,
+  "ended_at": null,
+  "quantity": 1,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "charge_at": 1580841000,
+  "start_at": 1580284732,
+  "end_at": 1611081000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 1,
+  "customer_notify": true,
+  "created_at": 1580284702,
+  "expire_by": 1580626111,
+  "short_url": "https://rzp.io/i/fFWTkbf",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": 1527858600,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 5
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Pause a subscription
+
+```js
+instance.subscription.pause(subscriptionId,{
+  pause_at : 'now'
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be paused  |
+| pause_at  | string | To pause the subscription, possible values: `now`  |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000001",
+  "status": "paused",
+  "current_start": null,
+  "current_end": null,
+  "ended_at": null,
+  "quantity": 1,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at": null,
+  "start_at": 1580626111,
+  "end_at": 1583433000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 0,
+  "customer_notify": true,
+  "created_at": 1580280581,
+  "paused_at": 1590280581,
+  "expire_by": 1580626111,
+  "pause_initiated_by": "self",
+  "short_url": "https://rzp.io/i/z3b1R61A9",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 6
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Resume a subscription
+
+```js
+instance.subscription.resume(subscriptionId,{
+  resume_at : 'now'
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to be resumed  |
+| resume_at  | string | To resume the subscription, possible values: `now`  |
+
+**Response:**
+```json
+{
+  "id": "sub_00000000000001",
+  "entity": "subscription",
+  "plan_id": "plan_00000000000001",
+  "status": "active",
+  "current_start": null,
+  "current_end": null,
+  "ended_at": null,
+  "quantity": 1,
+  "notes":{
+    "notes_key_1":"Tea, Earl Grey, Hot",
+    "notes_key_2":"Tea, Earl Grey… decaf."
+  },
+  "charge_at": 1580453311,
+  "start_at": 1580626111,
+  "end_at": 1583433000,
+  "auth_attempts": 0,
+  "total_count": 6,
+  "paid_count": 0,
+  "customer_notify": true,
+  "created_at": 1580280581,
+  "paused_at": 1590280581,
+  "expire_by": 1580626111,
+  "pause_initiated_by": null,
+  "short_url": "https://rzp.io/i/z3b1R61A9",
+  "has_scheduled_changes": false,
+  "change_scheduled_at": null,
+  "source": "api",
+  "offer_id":"offer_JHD834hjbxzhd38d",
+  "remaining_count": 6
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all invoices for a subscription
+
+```js
+instance.invoices.all({
+  'subscription_id':subscriptionId
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to fetch invoices  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "inv_00000000000003",
+      "entity": "invoice",
+      "receipt": null,
+      "invoice_number": null,
+      "customer_id": "cust_00000000000001",
+      "customer_details": {
+        "id": "cust_00000000000001",
+        "name": null,
+        "email": "gaurav.kumar@example.com",
+        "contact": "+919876543210",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": null,
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "+919876543210"
+      },
+      "order_id": "order_00000000000002",
+      "subscription_id": "sub_00000000000001",
+      "line_items": [
+        {
+          "id": "li_00000000000003",
+          "item_id": null,
+          "ref_id": null,
+          "ref_type": null,
+          "name": "Monthly Plan",
+          "description": null,
+          "amount": 99900,
+          "unit_amount": 99900,
+          "gross_amount": 99900,
+          "tax_amount": 0,
+          "taxable_amount": 99900,
+          "net_amount": 99900,
+          "currency": "INR",
+          "type": "plan",
+          "tax_inclusive": false,
+          "hsn_code": null,
+          "sac_code": null,
+          "tax_rate": null,
+          "unit": null,
+          "quantity": 1,
+          "taxes": []
+        }
+      ],
+      "payment_id": "pay_00000000000002",
+      "status": "paid",
+      "expire_by": null,
+      "issued_at": 1593344888,
+      "paid_at": 1593344889,
+      "cancelled_at": null,
+      "expired_at": null,
+      "sms_status": null,
+      "email_status": null,
+      "date": 1593344888,
+      "terms": null,
+      "partial_payment": false,
+      "gross_amount": 99900,
+      "tax_amount": 0,
+      "taxable_amount": 99900,
+      "amount": 99900,
+      "amount_paid": 99900,
+      "amount_due": 0,
+      "currency": "INR",
+      "currency_symbol": "₹",
+      "description": null,
+      "notes": [],
+      "comment": null,
+      "short_url": "https://rzp.io/i/Ys4feGqEp",
+      "view_less": true,
+      "billing_start": 1594405800,
+      "billing_end": 1597084200,
+      "type": "invoice",
+      "group_taxes_discounts": false,
+      "created_at": 1593344888,
+      "idempotency_key": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete offer linked to a subscription
+
+```js
+instance.subscriptions.deleteOffer(subscriptionId, offerId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| subscriptionId*  | string | The id of the subscription to offer need to be deleted  |
+| offerId*  | string | The id of the offer linked to subscription  |
+
+**Response:**
+```json
+{
+    "id": "sub_I3GGEs7Xgmnozy",
+    "entity": "subscription",
+    "plan_id": "plan_HuXrfsI0ZZ3peu",
+    "customer_id": "cust_I3FToKbnExwDLu",
+    "status": "active",
+    "current_start": 1632914901,
+    "current_end": 1635445800,
+    "ended_at": null,
+    "quantity": 1,
+    "notes": [],
+    "charge_at": 1635445800,
+    "start_at": 1632914901,
+    "end_at": 1645986600,
+    "auth_attempts": 0,
+    "total_count": 6,
+    "paid_count": 1,
+    "customer_notify": true,
+    "created_at": 1632914246,
+    "expire_by": 1635532200,
+    "short_url": "https://rzp.io/i/SOvRWaYP81",
+    "has_scheduled_changes": false,
+    "change_scheduled_at": null,
+    "source": "dashboard",
+    "payment_method": "card",
+    "offer_id": null,
+    "remaining_count": 5
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Authentication Transaction
+
+Please refer this [doc](https://razorpay.com/docs/api/subscriptions/#authentication-transaction) for authentication of transaction
+
+-------------------------------------------------------------------------------------------------------
+
+### Payment verification
+```js
+instance.payments.paymentVerification({
+   'subscription_id':'sub_ID6MOhgkcoHj9I',
+   'payment_id':'pay_IDZNwZZFtnjyym',
+   'signature':'601f383334975c714c91a7d97dd723eb56520318355863dcf3821c0d07a17693'
+   },secret)
+```
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| body*   | object      | the response object of the successful payment `payment_id`, `order_id` and `signature` |
+| secret*   | string      | The secret that was generated from the Dashboard |
+
+Please refer this [doc](https://razorpay.com/docs/api/subscriptions/#payment-verification) for payment verification
+
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/subscriptions/#subscriptions)**
\ No newline at end of file
diff --git a/documents/token.md b/documents/token.md
new file mode 100644
index 00000000..bd354bee
--- /dev/null
+++ b/documents/token.md
@@ -0,0 +1,190 @@
+## Tokens
+
+### Fetch token by payment id
+```js
+instance.payments.fetch(paymentId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*    | string      | The id of the payment to be fetched |
+
+**Response:**
+```json
+{
+  "id": "pay_FHfqtkRzWvxky4",
+  "entity": "payment",
+  "amount": 100,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_FHfnswDdfu96HQ",
+  "invoice_id": null,
+  "international": false,
+  "method": "card",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": null,
+  "card_id": "card_F0zoXUp4IPPGoI",
+  "bank": null,
+  "wallet": null,
+  "vpa": null,
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_FHfn3rIiM1Z8nr",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "auth_code": "541898"
+  },
+  "created_at": 1595449871
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch tokens by customer id
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+   "entity":"collection",
+   "count":1,
+   "items":[
+      {
+         "id":"token_HouA2OQR5Z2jTL",
+         "entity":"token",
+         "token":"2JPRk664pZHUWG",
+         "bank":null,
+         "wallet":null,
+         "method":"card",
+         "card":{
+            "entity":"card",
+            "name":"Gaurav Kumar",
+            "last4":"8950",
+            "network":"Visa",
+            "type":"credit",
+            "issuer":"STCB",
+            "international":false,
+            "emi":false,
+            "sub_type":"consumer",
+            "expiry_month":12,
+            "expiry_year":2021,
+            "flows":{
+               "otp":true,
+               "recurring":true
+            }
+         },
+         "recurring":true,
+         "recurring_details":{
+            "status":"confirmed",
+            "failure_reason":null
+         },
+         "auth_type":null,
+         "mrn":null,
+         "used_at":1629779657,
+         "created_at":1629779657,
+         "expired_at":1640975399,
+         "dcc_enabled":false,
+         "billing_address":null
+      }
+   ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch particular token
+```js
+instance.customers.fetchToken(customerId, tokenId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+| tokenId*          | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "id": "token_Hxe0skTXLeg9pF",
+    "entity": "token",
+    "token": "F85BgXnGVwcuqV",
+    "bank": null,
+    "wallet": null,
+    "method": "card",
+    "card": {
+        "entity": "card",
+        "name": "ankit",
+        "last4": "5449",
+        "network": "MasterCard",
+        "type": "credit",
+        "issuer": "UTIB",
+        "international": false,
+        "emi": false,
+        "sub_type": "consumer",
+        "expiry_month": 12,
+        "expiry_year": 2024,
+        "flows": {
+            "recurring": true
+        }
+    },
+    "recurring": true,
+    "auth_type": null,
+    "mrn": null,
+    "used_at": 1632976165,
+    "created_at": 1631687852,
+    "expired_at": 1634215992,
+    "dcc_enabled": false
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete token
+
+```js
+instance.customers.deleteToken(customerId, tokenId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+| tokenId*          | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/upi/tokens/)**
\ No newline at end of file
diff --git a/documents/transfer.md b/documents/transfer.md
new file mode 100644
index 00000000..fb1132c5
--- /dev/null
+++ b/documents/transfer.md
@@ -0,0 +1,641 @@
+## Transfers
+
+### Create transfers from payment
+
+```js
+instance.payments.fetch({
+  transfers: {
+    amount: 1000,
+    currency: "INR",
+    notes: {
+      name: "Gaurav Kumar",
+      roll_no: "IEC2011025"
+    },
+    linked_account_notes: [
+      "branch"
+    ],
+    on_hold: 1,
+    on_hold_until: 1671222870
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched  |
+| transfers   | object     | All parameters listed [here](https://razorpay.com/docs/api/route/#create-transfers-from-payments) are supported |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "trf_E9uhYLFLLZ2pks",
+      "entity": "transfer",
+      "source": "pay_E8JR8E0XyjUSZd",
+      "recipient": "acc_CPRsN1LkFccllA",
+      "amount": 100,
+      "currency": "INR",
+      "amount_reversed": 0,
+      "notes": {
+        "name": "Gaurav Kumar",
+        "roll_no": "IEC2011025"
+      },
+      "on_hold": true,
+      "on_hold_until": 1671222870,
+      "recipient_settlement_id": null,
+      "created_at": 1580218356,
+      "linked_account_notes": [
+        "roll_no"
+      ],
+      "processed_at": 1580218357
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create transfers from order
+
+```js
+instance.orders.create({
+  amount: 2000,
+  currency: "INR",
+  transfers: [
+    {
+      account: "acc_CPRsN1LkFccllA",
+      amount: 1000,
+      currency: "INR",
+      notes: {
+        branch: "Acme Corp Bangalore North",
+        name: "Gaurav Kumar"
+      },
+      linked_account_notes: [
+        "branch"
+      ],
+      on_hold: 1,
+      on_hold_until: 1671222870
+    },
+    {
+      account: "acc_CNo3jSI8OkFJJJ",
+      amount: 1000,
+      currency: "INR",
+      notes: {
+        branch: "Acme Corp Bangalore South",
+        name: "Saurav Kumar"
+      },
+      linked_account_notes: [
+        "branch"
+      ],
+      on_hold: 0
+    }
+  ]
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| amount*   | integer      | The transaction amount, in paise |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+|  receipt      | string      | A unique identifier provided by you for your internal reference. |
+| transfers   | object     | All parameters listed [here](https://razorpay.com/docs/api/route/#create-transfers-from-orders) are supported |
+
+**Response:**
+```json
+{
+  "id": "order_E9uTczH8uWPCyQ",
+  "entity": "order",
+  "amount": 2000,
+  "amount_paid": 0,
+  "amount_due": 2000,
+  "currency": "INR",
+  "receipt": null,
+  "offer_id": null,
+  "status": "created",
+  "attempts": 0,
+  "notes": [],
+  "created_at": 1580217565,
+  "transfers": [
+    {
+      "recipient": "acc_CPRsN1LkFccllA",
+      "amount": 1000,
+      "currency": "INR",
+      "notes": {
+        "branch": "Acme Corp Bangalore North",
+        "name": "Gaurav Kumar"
+      },
+      "linked_account_notes": [
+        "branch"
+      ],
+      "on_hold": true,
+      "on_hold_until": 1671222870
+    },
+    {
+      "recipient": "acc_CNo3jSI8OkFJJJ",
+      "amount": 1000,
+      "currency": "INR",
+      "notes": {
+        "branch": "Acme Corp Bangalore South",
+        "name": "Saurav Kumar"
+      },
+      "linked_account_notes": [
+        "branch"
+      ],
+      "on_hold": false,
+      "on_hold_until": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Direct transfers
+
+```js
+instance.transfers.create({
+  "amount": 500,
+  "currency": "INR"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| accountId*   | string      | The id of the account to be fetched  |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| currency*   | string  | The currency of the payment (defaults to INR)  |
+
+**Response:**
+```json
+{
+  "id": "trf_E9utgtfGTcpcmm",
+  "entity": "transfer",
+  "source": "acc_CJoeHMNpi0nC7k",
+  "recipient": "acc_CPRsN1LkFccllA",
+  "amount": 100,
+  "currency": "INR",
+  "amount_reversed": 0,
+  "notes": [],
+  "fees": 1,
+  "tax": 0,
+  "on_hold": false,
+  "on_hold_until": null,
+  "recipient_settlement_id": null,
+  "created_at": 1580219046,
+  "linked_account_notes": [],
+  "processed_at": 1580219046
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch transfer for a payment
+
+```js
+instance.payment.fetchTransfer(paymentId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "trf_EAznuJ9cDLnF7Y",
+      "entity": "transfer",
+      "source": "pay_E9up5WhIfMYnKW",
+      "recipient": "acc_CMaomTz4o0FOFz",
+      "amount": 1000,
+      "currency": "INR",
+      "amount_reversed": 100,
+      "notes": [],
+      "fees": 3,
+      "tax": 0,
+      "on_hold": false,
+      "on_hold_until": null,
+      "recipient_settlement_id": null,
+      "created_at": 1580454666,
+      "linked_account_notes": [],
+      "processed_at": 1580454666
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch transfer for an order
+
+```js
+instance.ordes.transfers({
+  "expand[]": "transfers"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| orderId*   | string      | The id of the order to be fetched  |
+| expand*   | string    | Supported value is `transfer`  |
+
+**Response:**
+```json
+{
+  "id": "order_DSkl2lBNvueOly",
+  "entity": "order",
+  "amount": 1000,
+  "amount_paid": 1000,
+  "amount_due": 0,
+  "currency": "INR",
+  "receipt": null,
+  "offer_id": null,
+  "status": "paid",
+  "attempts": 1,
+  "notes": [],
+  "created_at": 1570794714,
+  "transfers": {
+    "entity": "collection",
+    "count": 1,
+    "items": [
+      {
+        "id": "trf_DSkl2lXWbiADZG",
+        "entity": "transfer",
+        "source": "order_DSkl2lBNvueOly",
+        "recipient": "acc_CNo3jSI8OkFJJJ",
+        "amount": 500,
+        "currency": "INR",
+        "amount_reversed": 0,
+        "notes": {
+          "branch": "Acme Corp Bangalore North",
+          "name": "Gaurav Kumar"
+        },
+        "fees": 2,
+        "tax": 0,
+        "on_hold": true,
+        "on_hold_until": 1670776632,
+        "recipient_settlement_id": null,
+        "created_at": 1570794714,
+        "linked_account_notes": [
+          "Acme Corp Bangalore North"
+        ],
+        "processed_at": 1570794772
+      }
+    ]
+  }
+}
+
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch transfer
+
+```js
+instance.transfers.fetch(transferId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| transferId*   | string      | The id of the transfer to be fetched  |
+
+**Response:**
+```json
+{
+  "id": "trf_E7V62rAxJ3zYMo",
+  "entity": "transfer",
+  "source": "pay_E6j30Iu1R7XbIG",
+  "recipient": "acc_CMaomTz4o0FOFz",
+  "amount": 100,
+  "currency": "INR",
+  "amount_reversed": 0,
+  "notes": [],
+  "fees": 1,
+  "tax": 0,
+  "on_hold": false,
+  "on_hold_until": null,
+  "recipient_settlement_id": null,
+  "created_at": 1579691505,
+  "linked_account_notes": [],
+  "processed_at": 1579691505
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch transfers for a settlement
+
+```js
+instance.transfers.all({
+   recipient_settlement_id :  recipientSettlementId
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| recipientSettlementId*   | string    | The recipient settlement id obtained from the settlement.processed webhook payload.  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "trf_DGSTeXzBkEVh48",
+      "entity": "transfer",
+      "source": "pay_DGSRhvMbOqeCe7",
+      "recipient": "acc_CMaomTz4o0FOFz",
+      "amount": 500,
+      "currency": "INR",
+      "amount_reversed": 0,
+      "notes": [],
+      "fees": 2,
+      "tax": 0,
+      "on_hold": false,
+      "on_hold_until": null,
+      "recipient_settlement_id": "setl_DHYJ3dRPqQkAgV",
+      "created_at": 1568110256,
+      "linked_account_notes": [],
+      "processed_at": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch settlement details
+
+```js
+instance.transfers.all({
+  expand[] = 'recipient_settlement'  
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| expand*   | string    | Supported value is `recipient_settlement`  |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "trf_DGSTeXzBkEVh48",
+      "entity": "transfer",
+      "source": "pay_DGSRhvMbOqeCe7",
+      "recipient": "acc_CMaomTz4o0FOFz",
+      "amount": 500,
+      "currency": "INR",
+      "amount_reversed": 0,
+      "notes": [],
+      "fees": 2,
+      "tax": 0,
+      "on_hold": false,
+      "on_hold_until": null,
+      "recipient_settlement_id": "setl_DHYJ3dRPqQkAgV",
+      "recipient_settlement": {
+        "id": "setl_DHYJ3dRPqQkAgV",
+        "entity": "settlement",
+        "amount": 500,
+        "status": "failed",
+        "fees": 0,
+        "tax": 0,
+        "utr": "CN0038699836",
+        "created_at": 1568349124
+      },
+      "created_at": 1568110256,
+      "linked_account_notes": [],
+      "processed_at": null
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Refund payments and reverse transfer from a linked account
+
+```js
+instance.payments.refund(paymentId,{
+    amount : 100,
+    reverse_all : 1
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched  |
+| amount*   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+| reverse_all   | boolean    | Reverses transfer made to a linked account. Possible values:<br> * `1` - Reverses transfer made to a linked account.<br>* `0` - Does not reverse transfer made to a linked account.|
+
+**Response:**
+```json
+{
+  "id": "rfnd_EAzovSwG8jBnGf",
+  "entity": "refund",
+  "amount": 100,
+  "currency": "INR",
+  "payment_id": "pay_EAdwQDe4JrhOFX",
+  "notes": [],
+  "receipt": null,
+  "acquirer_data": {
+    "rrn": null
+  },
+  "created_at": 1580454723
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch payments of a linked account
+
+```js
+instance.payments.all({
+  'X-Razorpay-Account':  linkedAccountId
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| X-Razorpay-Account   | string      | The linked account id to fetch the payments received by linked account |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 2,
+  "items": [
+    {
+      "id": "pay_E9uth3WhYbh9QV",
+      "entity": "payment",
+      "amount": 100,
+      "currency": "INR",
+      "status": "captured",
+      "order_id": null,
+      "invoice_id": null,
+      "international": null,
+      "method": "transfer",
+      "amount_refunded": 0,
+      "refund_status": null,
+      "captured": true,
+      "description": null,
+      "card_id": null,
+      "bank": null,
+      "wallet": null,
+      "vpa": null,
+      "email": "",
+      "contact": null,
+      "notes": [],
+      "fee": 0,
+      "tax": 0,
+      "error_code": null,
+      "error_description": null,
+      "created_at": 1580219046
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Reverse transfers from all linked accounts
+
+```js
+instance.transfers.reverse(transferId,{
+    amount:100
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| transferId*   | string      | The id of the transfer to be fetched  |
+| amount   | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |
+
+**Response:**
+```json
+{
+  "id": "rvrsl_EB0BWgGDAu7tOz",
+  "entity": "reversal",
+  "transfer_id": "trf_EAznuJ9cDLnF7Y",
+  "amount": 100,
+  "fee": 0,
+  "tax": 0,
+  "currency": "INR",
+  "notes": [],
+  "initiator_id": "CJoeHMNpi0nC7k",
+  "customer_refund_id": null,
+  "created_at": 1580456007
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Hold settlements for transfers
+```js
+instance.payments.transfer(paymentId,{
+  "amount": 500,
+  "currency": "INR",
+  "on_hold": "1"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched  |
+| transfers   | array     | All parameters listed here https://razorpay.com/docs/api/route/#hold-settlements-for-transfers are supported |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "trf_EB1VJ4Ux4GMmxQ",
+      "entity": "transfer",
+      "source": "pay_EB1R2s8D4vOAKG",
+      "recipient": "acc_CMaomTz4o0FOFz",
+      "amount": 100,
+      "currency": "INR",
+      "amount_reversed": 0,
+      "notes": [],
+      "fees": 1,
+      "tax": 0,
+      "on_hold": true,
+      "on_hold_until": null,
+      "recipient_settlement_id": null,
+      "created_at": 1580460652,
+      "linked_account_notes": [],
+      "processed_at": 1580460652
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Modify settlement hold for transfers
+```js
+instance.transfers.edit(paymentId,{
+  "on_hold": "1",
+  "on_hold_until": "1679691505"
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| paymentId*   | string      | The id of the payment to be fetched  |
+| transfers   | array     | All parameters listed here https://razorpay.com/docs/api/route/#hold-settlements-for-transfers are supported |
+
+**Response:**
+```json
+{
+  "id": "trf_EB17rqOUbzSCEE",
+  "entity": "transfer",
+  "source": "pay_EAeSM2Xul8xYRo",
+  "recipient": "acc_CMaomTz4o0FOFz",
+  "amount": 100,
+  "currency": "INR",
+  "amount_reversed": 0,
+  "notes": [],
+  "fees": 1,
+  "tax": 0,
+  "on_hold": true,
+  "on_hold_until": 1679691505,
+  "recipient_settlement_id": null,
+  "created_at": 1580459321,
+  "linked_account_notes": [],
+  "processed_at": 1580459321
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/route/#transfers/)**
\ No newline at end of file
diff --git a/documents/upi.md b/documents/upi.md
new file mode 100644
index 00000000..8d8dc8ed
--- /dev/null
+++ b/documents/upi.md
@@ -0,0 +1,517 @@
+## UPI
+
+### Create customer
+```js
+instance.customers.create({
+  name: "Razorpay User",
+  email: "customer@razorpay.com",
+  contact: 9123456780,
+  notes: {
+    notes_key_1: "Tea, Earl Grey, Hot",
+    notes_key_2: "Tea, Earl Grey… decaf"
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| name*          | string      | Name of the customer                        |
+| email        | string      | Email of the customer                       |
+| contact      | string      | Contact number of the customer              |
+| notes         | object      | A key-value pair                            |
+
+**Response:**
+```json
+{
+  "id": "cust_1Aa00000000003",
+  "entity": "customer",
+  "name": "Gaurav Kumar",
+  "email": "Gaurav.Kumar@example.com",
+  "contact": "9000000000",
+  "gstin": null,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+  },
+  "created_at": 1582033731
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Create order
+
+```js
+instance.orders.create({
+  amount: 0,
+  currency: "INR",
+  method: "upi",
+  customer_id: "cust_1Aa00000000001",
+  receipt: "Receipt No. 1",
+  notes: {
+    notes_key_1: "Beam me up Scotty",
+    notes_key_2: "Engage"
+  },
+  token: {
+    auth_type: "netbanking",
+    max_amount: 9999900,
+    expire_at: 4102444799,
+    notes: {
+      notes_key_1: "Tea, Earl Grey, Hot",
+      notes_key_2: "Tea, Earl Grey… decaf."
+    }
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| method*        | string  | The authorization method. In this case the value will be `emandate`                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+| token           | object  | A key-value pair                                                             |
+
+**Response:**
+```json
+{
+  "id": "order_1Aa00000000002",
+  "entity": "order",
+  "amount": 100,
+  "amount_paid": 0,
+  "amount_due": 100,
+  "currency": "INR",
+  "receipt": "Receipt No. 1",
+  "offer_id": null,
+  "status": "created",
+  "attempts": 0,
+  "notes": {
+    "notes_key_1": "Tea, Earl Grey, Hot",
+    "notes_key_2": "Tea, Earl Grey… decaf."
+    },
+  "created_at": 1565172642
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an Authorization Payment
+
+Please refer this [doc](https://razorpay.com/docs/api/recurring-payments/upi/authorization-transaction/#113-create-an-authorization-payment) for authorization payment
+
+-------------------------------------------------------------------------------------------------------
+
+### Create registration link
+
+```js
+instance.subscriptions.createRegistrationLink({
+  customer: {
+    name: "Gaurav Kumar",
+    email: "gaurav.kumar@example.com",
+    contact: 9123456780
+  },
+  type: "link",
+  amount: 100,
+  currency: "INR",
+  description: "Registration Link for Gaurav Kumar",
+  subscription_registration: {
+    method: "card",
+    max_amount: 500,
+    expire_at: 1634215992
+  },
+  receipt: "Receipt No. 5",
+  email_notify: 1,
+  sms_notify: 1,
+  expire_by: 1634215992,
+  notes: {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| customer          | object | Details of the customer to whom the registration link will be sent.           |
+| type*        | string  | In this case, the value is `link`.                      |
+| currency*        | string  | The 3-letter ISO currency code for the payment. Currently, only `INR` is supported. |
+| amount*         | integer  | The payment amount in the smallest currency sub-unit.                 |
+| description*    | string  | A description that appears on the hosted page. For example, `12:30 p.m. Thali meals (Gaurav Kumar`).                                                             |
+| subscription_registration           | object  | Details of the authorization payment.                      |
+| notes           | object  | A key-value pair                                                             |
+
+**Response:**
+```json
+{
+  "id": "inv_FHr1ekX0r2VCVK",
+  "entity": "invoice",
+  "receipt": "Receipt No. 23",
+  "invoice_number": "Receipt No. 23",
+  "customer_id": "cust_BMB3EwbqnqZ2EI",
+  "customer_details": {
+    "id": "cust_BMB3EwbqnqZ2EI",
+    "name": "Gaurav Kumar",
+    "email": "gaurav.kumar@example.com",
+    "contact": "9123456780",
+    "gstin": null,
+    "billing_address": null,
+    "shipping_address": null,
+    "customer_name": "Gaurav Kumar",
+    "customer_email": "gaurav.kumar@example.com",
+    "customer_contact": "9123456780"
+  },
+  "order_id": "order_FHr1ehR3nmNeXo",
+  "line_items": [],
+  "payment_id": null,
+  "status": "issued",
+  "expire_by": 4102444799,
+  "issued_at": 1595489219,
+  "paid_at": null,
+  "cancelled_at": null,
+  "expired_at": null,
+  "sms_status": "pending",
+  "email_status": "pending",
+  "date": 1595489219,
+  "terms": null,
+  "partial_payment": false,
+  "gross_amount": 100,
+  "tax_amount": 0,
+  "taxable_amount": 0,
+  "amount": 100,
+  "amount_paid": 0,
+  "amount_due": 100,
+  "currency": "INR",
+  "currency_symbol": "₹",
+  "description": "Registration Link for Gaurav Kumar",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "comment": null,
+  "short_url": "https://rzp.io/i/ak1WxDB",
+  "view_less": true,
+  "billing_start": null,
+  "billing_end": null,
+  "type": "link",
+  "group_taxes_discounts": false,
+  "created_at": 1595489219,
+  "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Send/Resend notifications
+
+```js
+instance.invoices.notifyBy(invoiceId,medium)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be notified                         |
+| medium*          | string | `sms`/`email`, Medium through which notification should be sent.                         |
+
+**Response:**
+```json
+{
+    "success": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Cancel a registration link
+
+```js
+instance.invoices.cancel(invoiceId)
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| invoiceId*          | string | The id of the invoice to be cancelled                         |
+
+**Response:**
+```json
+{
+    "id": "inv_FHrfRupD2ouKIt",
+    "entity": "invoice",
+    "receipt": "Receipt No. 1",
+    "invoice_number": "Receipt No. 1",
+    "customer_id": "cust_BMB3EwbqnqZ2EI",
+    "customer_details": {
+        "id": "cust_BMB3EwbqnqZ2EI",
+        "name": "Gaurav Kumar",
+        "email": "gaurav.kumar@example.com",
+        "contact": "9123456780",
+        "gstin": null,
+        "billing_address": null,
+        "shipping_address": null,
+        "customer_name": "Gaurav Kumar",
+        "customer_email": "gaurav.kumar@example.com",
+        "customer_contact": "9123456780"
+    },
+    "order_id": "order_FHrfRw4TZU5Q2L",
+    "line_items": [],
+    "payment_id": null,
+    "status": "cancelled",
+    "expire_by": 4102444799,
+    "issued_at": 1595491479,
+    "paid_at": null,
+    "cancelled_at": 1595491488,
+    "expired_at": null,
+    "sms_status": "sent",
+    "email_status": "sent",
+    "date": 1595491479,
+    "terms": null,
+    "partial_payment": false,
+    "gross_amount": 100,
+    "tax_amount": 0,
+    "taxable_amount": 0,
+    "amount": 100,
+    "amount_paid": 0,
+    "amount_due": 100,
+    "currency": "INR",
+    "currency_symbol": "₹",
+    "description": "Registration Link for Gaurav Kumar",
+    "notes": {
+        "note_key 1": "Beam me up Scotty",
+        "note_key 2": "Tea. Earl Gray. Hot."
+    },
+    "comment": null,
+    "short_url": "https://rzp.io/i/QlfexTj",
+    "view_less": true,
+    "billing_start": null,
+    "billing_end": null,
+    "type": "link",
+    "group_taxes_discounts": false,
+    "created_at": 1595491480,
+    "idempotency_key": null
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch token by payment ID
+
+```js
+instance.payments.fetch(paymentId)
+```
+
+**Parameters:**
+
+| Name       | Type   | Description                       |
+|------------|--------|-----------------------------------|
+| paymentId* | string | Id of the payment to be retrieved |
+
+**Response:**
+```json
+{
+  "id": "pay_FHfAzEJ51k8NLj",
+  "entity": "payment",
+  "amount": 100,
+  "currency": "INR",
+  "status": "captured",
+  "order_id": "order_FHfANdTUYeP8lb",
+  "invoice_id": null,
+  "international": false,
+  "method": "upi",
+  "amount_refunded": 0,
+  "refund_status": null,
+  "captured": true,
+  "description": null,
+  "card_id": null,
+  "bank": null,
+  "wallet": null,
+  "vpa": "gaurav.kumar@upi",
+  "email": "gaurav.kumar@example.com",
+  "contact": "+919876543210",
+  "customer_id": "cust_DtHaBuooGHTuyZ",
+  "token_id": "token_FHfAzGzREc1ug6",
+  "notes": {
+    "note_key 1": "Beam me up Scotty",
+    "note_key 2": "Tea. Earl Gray. Hot."
+  },
+  "fee": 0,
+  "tax": 0,
+  "error_code": null,
+  "error_description": null,
+  "error_source": null,
+  "error_step": null,
+  "error_reason": null,
+  "acquirer_data": {
+    "rrn": "854977234911",
+    "upi_transaction_id": "D0BED5A062ECDB3E9B3A1071C96BB273"
+  },
+  "created_at": 1595447490
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch tokens by customer ID
+
+```js
+instance.customers.fetchTokens(customerId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "token_FHfAzGzREc1ug6",
+      "entity": "token",
+      "token": "9KHsdPaCELeQ0t",
+      "bank": null,
+      "wallet": null,
+      "method": "upi",
+      "vpa": {
+        "username": "gaurav.kumar",
+        "handle": "upi",
+        "name": null
+      },
+      "recurring": true,
+      "recurring_details": {
+        "status": "confirmed",
+        "failure_reason": null
+      },
+      "auth_type": null,
+      "mrn": null,
+      "used_at": 1595447490,
+      "created_at": 1595447490,
+      "start_time": 1595447455,
+      "dcc_enabled": false
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete token
+
+```js
+instance.customers.deleteToken(customerId,tokenId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| customerId*          | string      | The id of the customer to be fetched |
+| tokenId*          | string      | The id of the token to be fetched |
+
+**Response:**
+```json
+{
+    "deleted": true
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create an order to charge the customer
+
+```js
+instance.orders.create({
+  receipt: 123,
+  amount: 100,
+  currency: "INR",
+  notes: {
+    key1: "value3",
+    key2: "value2"
+  }
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| amount*          | integer | Amount of the order to be paid                                               |
+| currency*        | string  | Currency of the order. Currently only `INR` is supported.                      |
+| receipt         | string  | Your system order reference id.                                              |
+| notes           | object  | A key-value pair                                                             |
+
+**Response:**
+```json
+{
+   "id":"order_1Aa00000000002",
+   "entity":"order",
+   "amount":1000,
+   "amount_paid":0,
+   "amount_due":1000,
+   "currency":"INR",
+   "receipt":"Receipt No. 1",
+   "offer_id":null,
+   "status":"created",
+   "attempts":0,
+   "notes":{
+      "notes_key_1":"Tea, Earl Grey, Hot",
+      "notes_key_2":"Tea, Earl Grey… decaf."
+   },
+   "created_at":1579782776
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Create a recurring payment
+
+```js
+instance.payments.createRecurringPayment({
+  email: "gaurav.kumar@example.com",
+  contact: 9123456789,
+  amount: 100,
+  currency: "INR",
+  order_id: "order_1Aa00000000002",
+  customer_id: "cust_1Aa00000000001",
+  token: "token_1Aa00000000001",
+  recurring: 1,
+  description: "Creating recurring payment for Gaurav Kumar"
+})
+```
+
+**Parameters:**
+
+| Name            | Type    | Description                                                                  |
+|-----------------|---------|------------------------------------------------------------------------------|
+| email*          | string | The customer's email address.                                               |
+| contact*        | string  | The customer's phone number.                      |
+| amount*         | integer  | The amount you want to charge your customer. This should be the same as the amount in the order.                        |
+| currency*        | string  | The 3-letter ISO currency code for the payment. Currently, only `INR` is supported. |
+| order_id*        | string  | The unique identifier of the order created. |
+| customer_id*        | string  | The `customer_id` for the customer you want to charge.  |
+| token*        | string  | The `token_id` generated when the customer successfully completes the authorization payment. Different payment instruments for the same customer have different `token_id`.|
+| recurring*        | string  | Determines if recurring payment is enabled or not. Possible values:<br>* `1` - Recurring is enabled.* `0` - Recurring is not enabled.|
+| description*        | string  | A user-entered description for the payment.|
+| notes*        | object  | Key-value pair that can be used to store additional information about the entity. Maximum 15 key-value pairs, 256 characters (maximum) each. |
+
+**Response:**
+```json
+{
+  "razorpay_payment_id" : "pay_1Aa00000000001",
+  "razorpay_order_id" : "order_1Aa00000000001",
+  "razorpay_signature" : "9ef4dffbfd84f1318f6739a3ce19f9d85851857ae648f114332d8401e0949a3d"
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/api/recurring-payments/upi/authorization-transaction/)**
\ No newline at end of file
diff --git a/documents/virtualAccount.md b/documents/virtualAccount.md
new file mode 100644
index 00000000..653bca14
--- /dev/null
+++ b/documents/virtualAccount.md
@@ -0,0 +1,551 @@
+## Virtual account
+
+### Create a virtual account
+```js
+instance.virtualAccounts.create({
+  receivers: {
+    types: [
+      "bank_account"
+    ]
+  },
+  description: "Virtual Account created for Raftar Soft",
+  customer_id: "cust_CaVDm8eDRSXYME",
+  close_by: 1681615838,
+  notes: {
+    project_name: "Banking Software"
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| receivers*    | object      | Array that defines what receivers are available for this Virtual Account                        |
+| description  | string      | A brief description of the virtual account.                    |
+| customer_id  | string      | Unique identifier of the customer to whom the virtual account must be tagged.                    |
+| close_by  | integer      | UNIX timestamp at which the virtual account is scheduled to be automatically closed.                  |
+| notes  | integer      | Any custom notes you might want to add to the virtual account can be entered here.                  |
+
+**Response:**
+```json
+{
+  "id":"va_DlGmm7jInLudH9",
+  "name":"Acme Corp",
+  "entity":"virtual_account",
+  "status":"active",
+  "description":"Virtual Account created for Raftar Soft",
+  "amount_expected":null,
+  "notes":{
+    "project_name":"Banking Software"
+  },
+  "amount_paid":0,
+  "customer_id":"cust_CaVDm8eDRSXYME",
+  "receivers":[
+    {
+      "id":"ba_DlGmm9mSj8fjRM",
+      "entity":"bank_account",
+      "ifsc":"RATN0VAAPIS",
+      "bank_name": "RBL Bank",
+      "name":"Acme Corp",
+      "notes":[],
+      "account_number":"2223330099089860"
+    }
+  ],
+  "close_by":1681615838,
+  "closed_at":null,
+  "created_at":1574837626
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Create a virtual account with TPV
+```js
+instance.virtualAccounts.create({
+  receivers: {
+    types: [
+      "bank_account"
+    ]
+  },
+  allowed_payers: [
+    {
+      type: "bank_account",
+      bank_account: {
+        ifsc: "RATN0VAAPIS",
+        account_number: 2223330027558515
+      }
+    }
+  ],
+  description: "Virtual Account created for Raftar Soft",
+  customer_id: "cust_HssUOFiOd2b1TJ",
+  notes: {
+    project_name: "Banking Software"
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| receivers*    | object      | Array that defines what receivers are available for this Virtual Account                        |
+| allowed_payers*  | object      | All parameters listed [here](https://razorpay.com/docs/api/smart-collect-tpv/#create-virtual-account) are supported |
+| description  | string      | A brief description of the virtual account.                    |
+| customer_id  | string      | Unique identifier of the customer to whom the virtual account must be tagged.                    |
+| notes  | integer      | Any custom notes you might want to add to the virtual account can be entered here.                  |
+
+**Response:**
+```json
+{
+  "id":"va_DlGmm7jInLudH9",
+  "name":"Acme Corp",
+  "entity":"virtual_account",
+  "status":"active",
+  "description":"Virtual Account created for Raftar Soft",
+  "amount_expected":null,
+  "notes":{
+    "project_name":"Banking Software"
+  },
+  "amount_paid":0,
+  "customer_id":"cust_CaVDm8eDRSXYME",
+  "receivers":[
+    {
+      "id":"ba_DlGmm9mSj8fjRM",
+      "entity":"bank_account",
+      "ifsc":"RATN0VAAPIS",
+      "bank_name": "RBL Bank",
+      "name":"Acme Corp",
+      "notes":[],
+      "account_number":"2223330099089860"
+    }
+  ],
+  "allowed_payers": [
+    {
+      "type": "bank_account",
+      "id":"ba_DlGmm9mSj8fjRM",
+      "bank_account": {
+        "ifsc": "UTIB0000013",
+        "account_number": "914010012345679"
+      }
+    },
+    {
+      "type": "bank_account",
+      "id":"ba_Cmtnm5tSj6agUW",
+      "bank_account": {
+        "ifsc": "UTIB0000014",
+        "account_number": "914010012345680"
+      }
+    }
+  ],
+  "close_by":1681615838,
+  "closed_at":null,
+  "created_at":1574837626
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Create static/dynamic qr
+```js
+instance.virtualAccounts.create({
+  receivers: {
+    types: [
+      "qr_code"
+    ]
+  },
+  description: "First QR code",
+  amount_expected: 100,
+  notes: {
+    receiver_key: "receiver_value"
+  }
+})
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| receivers*    | array      | Array that defines what receivers are available for this Virtual Account                        |
+| description  | string      | A brief description of the payment.   |
+| amount_expected  | integer   | The maximum amount you expect to receive in this virtual account. Pass `69999` for ₹699.99.   |
+| notes       | object | All keys listed [here](https://razorpay.com/docs/payments/payments/payment-methods/bharatqr/api/#create) are supported   |
+
+**Response:**
+```json
+{
+  "id": "va_4xbQrmEoA5WJ0G",
+  "name": "Acme Corp",
+  "entity": "virtual_account",
+  "status": "active",
+  "description": "First Payment by BharatQR",
+  "amount_expected": null,
+  "notes": {
+    "reference_key": "reference_value"
+  },
+  "amount_paid": 0,
+  "customer_id": "cust_805c8oBQdBGPwS",
+  "receivers": [
+    {
+      "id": "qr_4lsdkfldlteskf",
+      "entity": "qr_code",
+      "reference": "AgdeP8aBgZGckl",
+      "short_url": "https://rzp.io/i/PLs03pOc"
+    }
+  ],
+  "close_by": null,
+  "closed_at": null,
+  "created_at": 1607938184
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch virtual account by id
+```js
+instance.virtualAccounts.fetch(virtualId)
+```
+
+**Parameters:**
+
+| Name          | Type        | Description                                 |
+|---------------|-------------|---------------------------------------------|
+| virtualId*          | string      | The id of the virtual to be updated  |
+
+**Response:**
+For fetch virtual account by id response please click [here](https://razorpay.com/docs/api/smart-collect/#fetch-a-virtual-account-by-id)
+-------------------------------------------------------------------------------------------------------
+
+### Fetch all virtual account
+```js
+instance.virtualAccounts.all(options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "va_Di5gbNptcWV8fQ",
+      "name": "Acme Corp",
+      "entity": "virtual_account",
+      "status": "closed",
+      "description": "Virtual Account created for M/S ABC Exports",
+      "amount_expected": 2300,
+      "notes": {
+        "material": "teakwood"
+      },
+      "amount_paid": 239000,
+      "customer_id": "cust_DOMUFFiGdCaCUJ",
+      "receivers": [
+        {
+          "id": "ba_Di5gbQsGn0QSz3",
+          "entity": "bank_account",
+          "ifsc": "RATN0VAAPIS",
+          "bank_name": "RBL Bank",
+          "name": "Acme Corp",
+          "notes": [],
+          "account_number": "1112220061746877"
+        }
+      ],
+      "close_by": 1574427237,
+      "closed_at": 1574164078,
+      "created_at": 1574143517
+    }
+  ]
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Fetch payments for a virtual account
+```js
+instance.virtualAccounts.fetchPayments(virtualId,options)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+| from  | timestamp | timestamp after which the payments were created  |
+| to    | timestamp | timestamp before which the payments were created |
+| count | integer   | number of payments to fetch (default: 10)        |
+| skip  | integer   | number of payments to be skipped (default: 0)    |
+
+**Response:**
+```json
+{
+  "entity": "collection",
+  "count": 1,
+  "items": [
+    {
+      "id": "pay_Di5iqCqA1WEHq6",
+      "entity": "payment",
+      "amount": 239000,
+      "currency": "INR",
+      "status": "captured",
+      "order_id": null,
+      "invoice_id": null,
+      "international": false,
+      "method": "bank_transfer",
+      "amount_refunded": 0,
+      "refund_status": null,
+      "captured": true,
+      "description": "",
+      "card_id": null,
+      "bank": null,
+      "wallet": null,
+      "vpa": null,
+      "email": "saurav.kumar@example.com",
+      "contact": "+919972139994",
+      "customer_id": "cust_DOMUFFiGdCaCUJ",
+      "notes": [],
+      "fee": 2820,
+      "tax": 430,
+      "error_code": null,
+      "error_description": null,
+      "created_at": 1574143644
+    }
+  ]
+}
+```
+
+-------------------------------------------------------------------------------------------------------
+
+### Fetch payment details using id and transfer method
+```js
+instance.payments.bankTransfer(paymentId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+
+**Response:**
+```json
+{
+  "id": "bt_Di5iqCElVyRlCb",
+  "entity": "bank_transfer",
+  "payment_id": "pay_Di5iqCqA1WEHq6",
+  "mode": "NEFT",
+  "bank_reference": "157414364471",
+  "amount": 239000,
+  "payer_bank_account": {
+    "id": "ba_Di5iqSxtYrTzPU",
+    "entity": "bank_account",
+    "ifsc": "UTIB0003198",
+    "bank_name": "Axis Bank",
+    "name": "Acme Corp",
+    "notes": [],
+    "account_number": "765432123456789"
+  },
+  "virtual_account_id": "va_Di5gbNptcWV8fQ",
+  "virtual_account": {
+    "id": "va_Di5gbNptcWV8fQ",
+    "name": "Acme Corp",
+    "entity": "virtual_account",
+    "status": "closed",
+    "description": "Virtual Account created for M/S ABC Exports",
+    "amount_expected": 2300,
+    "notes": {
+      "material": "teakwood"
+    },
+    "amount_paid": 239000,
+    "customer_id": "cust_DOMUFFiGdCaCUJ",
+    "receivers": [
+      {
+        "id": "ba_Di5gbQsGn0QSz3",
+        "entity": "bank_account",
+        "ifsc": "RATN0VAAPIS",
+        "bank_name": "RBL Bank",
+        "name": "Acme Corp",
+        "notes": [],
+        "account_number": "1112220061746877"
+      }
+    ],
+    "close_by": 1574427237,
+    "closed_at": 1574164078,
+    "created_at": 1574143517
+  }
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Refund payments made to a virtual account
+```js
+instance.payments.refund(paymentId,{
+  "amount": "100",
+  "speed": "normal",
+  "notes": {
+    "notes_key_1": "Beam me up Scotty.",
+    "notes_key_2": "Engage"
+  },
+  "receipt": "Receipt No. 31"
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| paymentId*  | string    | The id of the payment to be updated  |
+|  amount       | integer      | The amount to be captured (should be equal to the authorized amount, in paise) |                       |
+|  speed        | string      | Here, it must be normal                |
+|  notes        | array       | A key-value pair                |
+|  receipt      | string      | A unique identifier provided by you for your internal reference. |
+
+**Response:**
+```json
+{
+  "id": "rfnd_E6j36ZEKvsWsEn",
+  "entity": "refund",
+  "amount": 100,
+  "currency": "INR",
+  "payment_id": "pay_E54n391WnEAV9H",
+  "notes": {
+    "key_1": "value1",
+    "key_2": "value2"
+  },
+  "receipt": null,
+  "acquirer_data": {
+    "rrn": null
+  },
+  "created_at": 1579522301
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Add receiver to an existing virtual account
+```js
+instance.virtualAccounts.addReceiver(virtualId,{
+  types: [
+    "vpa"
+  ],
+  vpa: {
+    descriptor: "gauravkumar"
+  }
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+| types*  | object | The receiver type to be added to the virtual account. Possible values are `vpa` or `bank_account`  |
+| vpa    | object | This is to be passed only when `vpa` is passed as the receiver types. |
+
+**Response:**
+For add receiver to an existing virtual account response please click [here](https://razorpay.com/docs/api/smart-collect/#add-receiver-to-an-existing-virtual-account)
+
+-------------------------------------------------------------------------------------------------------
+
+### Add an Allowed Payer Account
+```js
+instance.virtualAccounts.allowedPayer(virtualId,{
+  types: "bank_account",
+  bank_account: {
+    ifsc: "UTIB0000013",
+    account_number: 914010012345679
+  }
+})
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+| types*  | object | The receiver type to be added to the virtual account. Possible values are `vpa` or `bank_account`  |
+| bank_account*    | object | Indicates the bank account details such as `ifsc` and `account_number` |
+
+**Response:**
+```json
+{
+  "id":"va_DlGmm7jInLudH9",
+  "name":"Acme Corp",
+  "entity":"virtual_account",
+  "status":"active",
+  "description":"Virtual Account created for Raftar Soft",
+  "amount_expected":null,
+  "notes":{
+    "project_name":"Banking Software"
+  },
+  "amount_paid":0,
+  "customer_id":"cust_CaVDm8eDRSXYME",
+  "receivers":[
+    {
+      "id":"ba_DlGmm9mSj8fjRM",
+      "entity":"bank_account",
+      "ifsc":"RATN0VAAPIS",
+      "bank_name": "RBL Bank",
+      "name":"Acme Corp",
+      "notes":[],
+      "account_number":"2223330099089860"
+    }
+  ],
+  "allowed_payers": [
+    {
+      "type": "bank_account",
+      "id":"ba_DlGmm9mSj8fjRM",
+      "bank_account": {
+        "ifsc": "UTIB0000013",
+        "account_number": "914010012345679"
+      }
+    }
+  ],
+  "close_by":1681615838,
+  "closed_at":null,
+  "created_at":1574837626
+}
+```
+-------------------------------------------------------------------------------------------------------
+
+### Delete an Allowed Payer Account
+```js
+instance.virtualAccounts.deleteAllowedPayer(virtualId,allowedPayersId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+| allowedPayersId*  | string    | The id of the allowed payers to be updated  |
+
+**Response:**
+```json
+{}
+```
+-------------------------------------------------------------------------------------------------------
+### Close virtual account
+```js
+instance.virtualAccounts.close(virtualId)
+```
+
+**Parameters:**
+
+| Name  | Type      | Description                                      |
+|-------|-----------|--------------------------------------------------|
+| virtualId*  | string    | The id of the virtual to be updated  |
+
+**Response:**
+For close virtual account response please click [here](https://razorpay.com/docs/api/smart-collect/#close-a-virtual-account)
+-------------------------------------------------------------------------------------------------------
+
+**PN: * indicates mandatory fields**
+<br>
+<br>
+**For reference click [here](https://razorpay.com/docs/smart-collect/api/)**
\ No newline at end of file