Best design teams in India??

Swiggy - check out the works of Prasanna, Sapta and others

The company is still in early stages but I like Peerlist's (peerlist.io) design approach towards professional networking. I think they will go big.

Urban Company - Amit Das

Best design:
Cred Dunzo Swiggy

How is the design team in razorpay?

You will thrive in ather, if you interested working along with different stream of designers (Transportation, industrial). Although i m not sure about design leaders