If you google the btc rate in USD and multiply it by 64.5 to get INR, the value will be lesser than the buying rates on zebpay or any exchange in India. This rate also varies from market to market and exchange to exchange, for example the current BTC rate in usd is 2600, but bitcoin ATMs sell it for somewhere around 3300 dollars.
The only thing you can check is among the exchanges in India and among those exchnages what is the transaction fee and processing time, basis this you can select your exchange
RE: Bitcoin officialy Legal in India!