Online Poker is legal in india. Any oke can play for real money and it is legal because the Supreme Court of India ruled in 1996 that playing any game of skill for real money as well as for free is legal and not gambling or betting. So it is absolutely legal for poker or other form of card games. Maybe try poker instead if slot games

Bitcasino.io still the best , or one of the best for india market

Is cryptocurrency legal in India? There is no central authority in India that regulates the use of cryptocurrencies as a form of payment. When dealing with cryptocurrencies, there are no established norms or rules for resolving conflicts. Trading in cryptocurrencies is thus done at the risk of investors.
It might be a good chance for crypto casino to enter India