Question: how to pay hdfc credit card bill through icici debit card?
Answer: Visit HDFC's Bill Desk page.
Check the 'Terms & Conditions' box at the bottom of the page and click on 'Pay'
You will be redirected to another page where you need to enter your HDFC Credit Card number, e-mail address and payment amount.
From the 'Pay from' drop down menu, select your preferred banker and click on 'Pay'