You can have many options for purchasing Bitcoin in India. Instead of buying Bitcoin from another holder, it would be better to purchase through a centralized exchange, preferably through LocalBitcoins, a reputed marketplace. You don’t have to go through all the KYC procedures if you buy Bitcoins through a marketplace. A bit of caution is significant while dealing with a marketplace, as it is vulnerable. So try to deal with a reputed marketplace with positive reviews. With LocalBitcoins you can have escrow service which covers some protection for your transaction.