Ya it is true that in India bitcoin and cryptocurrency trading and using with bank is banned and who ever are trading their bank accounts are blocked. RBI have given strict instructions to bank to close the account who are dealing in cryptocurrency. Even exchanges have stopped the fiat currency trading and some exchanges have shifted their working office to abroad where cryptocurrency is legal.
Their is a legal war going between cryptocurrency exchange and RBI in regards to legalize bitcoin as it the right of the people to chose which is good or bad for them and government cannot force them to stop using it. As India is a democracy country every Indian citizen have their own rights to do anything until it is not illegal or scamming others.