HDFC Bank has started a limited-time SmartBuy Offer just for Diners Black and Diners Black Metal Credit Card Cardholders. This offer is valid for January 2026 and lets eligible cardholders earn brand Vouchers just by signing up and meeting the bank’s spending requirements.
This offer is exclusive to invited customers. If you have received an official notification from the bank via SMS, Email, RCS, mobile banking, or net banking, you are all set to use it!

Offer Details
- The offer is valid from 1st of January 2026 to 31st January. Only the retail transactions during this period would be eligible for this offer.
- Registration is mandatory for this offer. The cardholder must click the “Participate Now” button, which will be shared via HDFC Bank’s official channel.
- Once registered, cardholders must spend the required amount using their eligible Diners Black or Diners Black metal card within the offer period. Like we have got the following offer- get ₹3,000 vouchers on spending ₹3,07,000; however, this is not fixed and would vary from person to person.
- The user can redeem the voucher for popular brands like Croma, Lifestyle, Swiggy, MakeMyTrip, and more, which will be mentioned by the bank in the message when they communicate.
Eligible Transactions
- Only retail and full-swipe transactions are eligible for this offer. For instance, any transaction where a customer might ask for a refund, or in the future could raise issues, will not be eligible for the transaction.
- Cardholders who have an inactive account during the offer period will also not qualify for this offer.
Bottom Line
If you have an HDFC Diners Black or Diners Black Metal Credit Card and have received the official Smartybuy message, this January 2026 offer is a great chance to earn premium brand vouchers by using your card regularly. But cardholders who receive an invitation must register on time and meet the spending requirements exactly as the bank’s message states.
