Most people just moved on to p2p direct cash deals.
Previously, people traded on legalized exchanges and those legalized exchanges and people paid tax to Indian government.
People still deal with crypto using p2p but government stopped getting tax.
People will always move to P2P exchanges where governments ban things.
Look at file sharing, it was banned in the US when Napster was "shut down." That was 2001 and people still share files
It must be hard for the banks to tell Indians to invest in stocks with rupee's but they can't buy bitcoin. Especially when the rupee will eventually die as a currency.
https://economictimes.indiatimes.com/markets/stocks/news/market-on-track-for-worst-october-since-2008-should-you-catch-the-falling-knife/articleshow/66360642.cms
localbitcoins and hodlhodl are good exchanges for people in India. Bisq is probably too intense for some but it's the first decentralized exchange for crypto currencies makes it impossible for any government to stop buying bitcoin and altcoins. Then there is always coin mama for prepaid visa cards to buy small amounts anonymously.