HDFC Bank clients can dial the toll-free number below for assistance with queries or grievance resolution: Accessible across India: 1800 202 6161 / 1860 267 6161 Frequently Asked Questions What is the Credit Card helpline number for HDFC Bank? You can contact HDFC Bank’s Credit Card Customer Care at 1800 1600 / 1800 2600. As a customer travelling, you can reach the bank’s Customer Care at +91 22 61606160. HDFC BANK - Our services are available 24x7 onTollfree Banking Give a missed call on below numbers Check hdfc Customer Care for all types of inquiries. Check 24x7 (all days) helpline number for Debit card, credit card, Loans and other financial queries of hdfc Bank.