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Due to the RBI circular, crypto exchanges are not able to let traders liquidate crypto assets. That means banks accounts can not be used for buying crypto anymore and similarly you can not sell crypto and receive Rupee in your bank account through exchange. To deal with it few exchanges has launched Peer to Peer Exchange (P2P) where users can buy and sell crypto directly to each other. Till the further order from authorities users will only be able to trade between multiple crypto assets on the exchanges listed below.
http://coinfunda.com/best-cryptocurrency-exchange-in-india-bitcoin/