There is no special provision for credit bill payment on Google Pay application. However, credit card bills can be paid through UPI enabled e-wallets using QR code. For this, the respective banks will have to facilitate the payment procedure through e-wallets (UPI). Certain banks allow you to make their credit card bills by using the QR code. The QR code for scanning can be viewed from the respective websites of the lender by entering the credit card number. Currently, HDFC Bank allows their customers to pay credit card bills through their mobile banking app. You can check with the bank’s customer care team if they facilitate payment via UPI.
Additional Reading: HDFC Credit Card Online Payment