“India has 57 million credit cards (vs 830 million debit cards) [that] largely serves the high-end market. The credit card industry is largely concentrated with the top 4 banks (HDFC, SBI, ICICI and Axis) controlling about 70% of the total market. This space is extremely profitable for these banks – as evident from the SBI Cards IPO,” analysts at Bank of America wrote in a recent report to clients.

https://techcrunch.com/2021/04/06/indias-cred-valued-at-2-2-billion-in-new-215-million-fundraise/