diff --git a/backend/src/services/identity-access-token/identity-access-token-service.ts b/backend/src/services/identity-access-token/identity-access-token-service.ts
index 47d1791d2..a51d80e41 100644
--- a/backend/src/services/identity-access-token/identity-access-token-service.ts
+++ b/backend/src/services/identity-access-token/identity-access-token-service.ts
@@ -78,9 +78,7 @@ export const identityAccessTokenServiceFactory = ({
   const renewAccessToken = async ({ accessToken }: TRenewAccessTokenDTO) => {
     const appCfg = getConfig();
 
-    const decodedToken = jwt.verify(accessToken, appCfg.AUTH_SECRET) as JwtPayload & {
-      identityAccessTokenId: string;
-    };
+    const decodedToken = jwt.verify(accessToken, appCfg.AUTH_SECRET) as TIdentityAccessTokenJwtPayload;
     if (decodedToken.authTokenType !== AuthTokenType.IDENTITY_ACCESS_TOKEN) {
       throw new BadRequestError({ message: "Only identity access tokens can be renewed" });
     }
@@ -127,7 +125,23 @@ export const identityAccessTokenServiceFactory = ({
       accessTokenLastRenewedAt: new Date()
     });
 
-    return { accessToken, identityAccessToken: updatedIdentityAccessToken };
+    const renewedToken = jwt.sign(
+      {
+        identityId: decodedToken.identityId,
+        clientSecretId: decodedToken.clientSecretId,
+        identityAccessTokenId: decodedToken.identityAccessTokenId,
+        authTokenType: AuthTokenType.IDENTITY_ACCESS_TOKEN
+      } as TIdentityAccessTokenJwtPayload,
+      appCfg.AUTH_SECRET,
+      // akhilmhdh: for non-expiry tokens you should not even set the value, including undefined. Even for undefined jsonwebtoken throws error
+      Number(identityAccessToken.accessTokenTTL) === 0
+        ? undefined
+        : {
+            expiresIn: Number(identityAccessToken.accessTokenTTL)
+          }
+    );
+
+    return { accessToken: renewedToken, identityAccessToken: updatedIdentityAccessToken };
   };
 
   const revokeAccessToken = async (accessToken: string) => {