What is the best app for investing in crypto from India ? (Best as in security wise and trading charges wise)

I want to start SIP in crypto from this month. What is the best app for investing in crypto from India ? Since my SIP amount will be low, the charges should also be low. So please only suggest apps which has low charges.

Currently I am using CoinSwitch but considering in India we already have 30% tax on crypto gains, the coinswitch charges are a bit high which will reduce the profit by a lot and as a result the extra effort won’t make any difference from stock market investment.

Let me know. Thanks in advance.