4) Indusind exclusive or select debit cards (around ~0.9% cashback): There are 2 main cards : visa signature and Mastercard World. Both can be held together and free of charge with select or exclusive accounts. Use paytm or SBI Unipay or Canara setu for visa. Sbi unipay or Payzapp or Canara setu for mastercard variant. Do note, these dc have incremental rewards, so if spend is 10k only <0.5% rewards.
For mc world and visa signature each : Cashback limit is Rs 1050 per month on spends of 112k. Max 3000 reward points at 35 paise.
*Visa Platinum card has been devalued w.e.f November, so removed from above.