You can pay your HDFC credit card bill through another bank using several methods: Online Transfer: Log into your other bank's website or mobile app, navigate to bill payment or fund transfer, and add HDFC Bank as a biller using your HDFC credit card account number. Most banks allow this through NEFT, RTGS, or their proprietary payment systems. HDFC BillPay Portal: Visit the HDFC Bank website, select "Pay Anyone," and choose the option to pay from another bank account. You'll need to verify your other bank details. ATM Payment: Withdraw cash from your other bank's ATM and deposit it directly at an HDFC Bank branch or ATM, then use their deposit facility to credit your credit card account. Cheque Payment: Write a cheque from your other bank account payable to HDFC Bank and mail it or deposit it at an HDFC branch. Ensure the cheque is dated correctly and include your credit card number. Automatic Transfer Setup: Many banks allow you to set up automatic monthly payments (autopay) from your other bank account to your HDFC card. Third-party Apps: Use aggregator platforms like BillDesk, Paytm, or Google Pay that accept payments from multiple banks and transfer funds to HDFC. Important Notes: Processing times vary—online transfers typically take 1-2 business days, while cheques may take 5-7 days. Always pay before your due date to avoid late fees and interest charges. Ensure you use your correct HDFC card account number to avoid payment delays or posting errors. Check with your bank about any applicable charges for cross-bank transfers.