Credit card suggestions

I was checking my credit card rewards and realised that HDFC gives 4 points for every Rs150 spent.

Now I have a decent amount of credit card expenses every month but the majority of my transactions are less than 150. I spend a lot buying snacks, soft drinks and energy drinks from a shell store near my office.

Is there a way like using any buy now pay later product and then pay that from my credit card? Or Is there any credit card which can give a similar level of benefits and also account for small transactions as well?

Additional question: How is the Rupay or one credit card?