HDFC bank offers the highest free credit period days on your credit card. This means you can enjoy your credit on the car without interest for these days.
Here is a comparison:
Bank Credit card type Free credit days
HDFC Bank Platinum Plus Credit Card 55
ICICI Bank Platinum Card, Solid Gold Credit Card,
Sterling Silver Credit Card, Online Credit Card 52
HSBC Gold Credit Card, Classic Credit Card 52
Standard Chartered Platinum Plus Credit Card 45
Citibank Platinum Card, Solid Gold Credit Card,
Sterling Silver Credit Card, Online Credit Card 45