Join coinsecure. You can buy and sell bitcoins via INR. Local bitcoins have many untrustworthy members there and can be risky to trade. Coinsecure deals with these trades themselves and hence no chance of getting cheated.
This is indeed the best thing he could do right now, with 15k in hand. Too many stories about people getting screwed in Localbitcoins. Especially since he is new, it is difficult to know who to deal with and when. It is better to do it via some trusted exchange, learn and then invest large amount and make more profit. Goodluck!