Nice topic. In credit card world, a best strategy means to obtain the best returns out of existing cards and use hidden/unknown/less popular ways of extracting the best possible returns - like double dipping, tripple dipping, voucher with voucher, milestone games, reward multiplier games and so many such things.
Strategy needs some planning, little bit advance knowledge about spends, card offers etc.
Personally my strategy is not the best of all. I can't call it a strategy itself. Just normal spends as and when needed.
HDFC Tata Neu Infinity: For everything.
- Insurance, utilities, mobile recharge etc: 5%
- Bigbasket grocery: 10%
- Offline swipes, UPI, other online payments etc: 1.5%
- Fuel: UPI scan (0%, no surcharge, no rewards)
HDFC Swiggy: Only for Swiggy 10% spends (Instamart and Dineout),
ICICI Amazon Pay: Only for Amazon spends or sometimes flights and hotels (5%)
ICICI Sapphiro: Only for B1G1 movie tickets on BMS
Federal Celesta and Indusind Tiger: Only for free lounge access