Ignore anyone telling you not to get a credit card
I got a credit card the first moment I could - it was an add on to my mum's card, but honestly, getting even 1% rewards beats 0
As long as you don't have an overspending habit and pay on time, CCs are the BEST things ever
You can get - Kotak free credit card and OneCard
If you're over 23, you can go for scapia too, a lot of these new age credit cards have 0 Cibil score requirements
Let me know if you need an invite to Cred - as much as people criticise it, it is a great platform to keep track of credit card payments
Amazon icici is also a good credit card to have