diff --git a/modules/pubmaticBidAdapter.js b/modules/pubmaticBidAdapter.js
index 5add3fb9be1..85018a73a54 100644
--- a/modules/pubmaticBidAdapter.js
+++ b/modules/pubmaticBidAdapter.js
@@ -68,6 +68,10 @@ const NATIVE_ASSET_IMAGE_TYPE = {
   'IMAGE': 3
 }
 
+const BANNER_CUSTOM_PARAMS = {
+  'battr': DATA_TYPES.ARRAY
+}
+
 const NET_REVENUE = true;
 const dealChannelValues = {
   1: 'PMP',
@@ -551,6 +555,14 @@ function _createBannerRequest(bid) {
     }
     bannerObj.pos = 0;
     bannerObj.topframe = inIframe() ? 0 : 1;
+
+    // Adding Banner custom params
+    const bannerCustomParams = {...deepAccess(bid, 'ortb2Imp.banner')};
+    for (let key in BANNER_CUSTOM_PARAMS) {
+      if (bannerCustomParams.hasOwnProperty(key)) {
+        bannerObj[key] = _checkParamDataType(key, bannerCustomParams[key], BANNER_CUSTOM_PARAMS[key]);
+      }
+    }
   } else {
     logWarn(LOG_WARN_PREFIX + 'Error: mediaTypes.banner.size missing for adunit: ' + bid.params.adUnit + '. Ignoring the banner impression in the adunit.');
     bannerObj = UNDEFINED;
diff --git a/test/spec/modules/pubmaticBidAdapter_spec.js b/test/spec/modules/pubmaticBidAdapter_spec.js
index 7d42f407448..82715ac518a 100644
--- a/test/spec/modules/pubmaticBidAdapter_spec.js
+++ b/test/spec/modules/pubmaticBidAdapter_spec.js
@@ -4084,6 +4084,46 @@ describe('PubMatic adapter', function () {
         })
       });
     }
+
+    describe('Banner Request param battr checking', function() {
+      it('should add battr params to bannerObj if present in ortb2Imp.banner', function() {
+        let originalBidRequests = utils.deepClone(bidRequests);
+        let bannerObj = utils.deepClone(originalBidRequests[0].ortb2Imp.banner);
+        originalBidRequests[0].ortb2Imp.banner = Object.assign(bannerObj, {
+          battr: [1, 2]
+        });
+
+        const req = spec.buildRequests(originalBidRequests, {
+          auctionId: 'new-auction-id'
+        });
+        let data = JSON.parse(req.data);
+        expect(data.imp[0]['banner']['battr']).to.exist.and.to.be.an('array');
+        expect(data.imp[0]['banner']['battr'][0]).to.equal(originalBidRequests[0].ortb2Imp.banner['battr'][0]);
+        expect(data.imp[0]['banner']['battr'][1]).to.equal(originalBidRequests[0].ortb2Imp.banner['battr'][1]);
+      });
+
+      it('should not add battr params to bannerObj if not present in ortb2Imp.banner', function() {
+        const req = spec.buildRequests(bidRequests, {
+          auctionId: 'new-auction-id'
+        });
+        let data = JSON.parse(req.data);
+        expect(data.imp[0]['banner']['battr']).to.equal(undefined);
+      });
+
+      it('should not add battr params if _checkParamDataType returns undefined (Mismatch data type)', function() {
+        let originalBidRequests = utils.deepClone(bidRequests);
+        let bannerObj = utils.deepClone(originalBidRequests[0].ortb2Imp.banner);
+        originalBidRequests[0].ortb2Imp.banner = Object.assign(bannerObj, {
+          battr: 1
+        });
+
+        const req = spec.buildRequests(originalBidRequests, {
+          auctionId: 'new-auction-id'
+        });
+        let data = JSON.parse(req.data);
+        expect(data.imp[0]['banner']['battr']).to.equal(undefined);
+      });
+    });
   });
 
   if (FEATURES.VIDEO) {