Adding to what Wealth mentioned -
I think your spends can be divided into multiple different cards, since they're almost reaching 4L.
4L is a sweet spot for
platinum travel card. But it's useful if you're into travel and luxury hotels (taj vouchers)
So if you want to keep just 1 card - try for platinum travel.
Note - amex does not serve well in offline transactions - pls keep that in mind.
Card diversification has multiple options.
1. Sticking to amex.
2. Other than amex.
It's purely a personal preference. Some like having multiple cards and getting max benefits. Some like peace of mind and one all rounder card.
1. Amex only diversification :
Get a platinum travel credit card, and get an add-on mrcc or gold card if possible. The add on card fees would be none. You may choose either. Personally I'd recommend
MRCC card. Use it for 1500*4 transactions (6-7% cashback) and occasionally you may get the 20k spend reward.
And the rest on platinum travel - 190k ~ 4% cashback.
(If you spend 4L on platinum travel - you get around 7.5% cashback as taj vouchers, or 4-5% as Amazon vouchers)
2. For non amex diversification -
hdfc Diners club black could be a good LTF option (or Infinia in paid category) Payments using coupons and smartbuy gets you a decent reward rate, but again best value would be in hotels and travel.
Here also, MRCC should be a good combo - it will cover all your Paytm wallet spends and some other spends (upto 20k a month) at 4-5% cashback.
Let me know if you need more clarity.
Links for benefits calculation:
https://www.americanexpress.com/en-in/benefits/the-gold-card/benefits-calculator/
Discover how your spends can add up to big rewards. Simply use the calculator and see how your benefits and rewards add up! Start by your preferred Welcome Gift.
www.americanexpress.com