In my opinion it will be legalised very soon in India because of the popularity it is gaining and its versatility is not allowing anyone to reject it.Indian Government will declare BITCOIN legal in a couple of years.
It seems you are unaware about the ystd decision given by the RBI which states that their is only last 3 months to unwind the position for the banks regarding the btc or any crypto currency. Their intention is very clear and they will be bringing their own coin.