OP I'd like to respectfully request that you pay attention to what TheUltrElite said; this is a public space, and having his phone number up there is a breach of privacy for which he could file a lawsuit; I understand that you lost money to this dude, but having his phone number up here wouldn't solve anything unless the "Find my location" app works in India, which I don't know about.
You were fortunate to be duped by a local con artist, but you must understand that LocalBitcoin is a peer-to-peer platform with the same rules everywhere: "Do not release your coins until you confirm payment in your wallet." You broke the rules and were caught in the middle with sweet words on WhatsApp. Your only option now is to contact your local police, but as crypto is illegal in India, I doubt they would intervene. Best wishes
I wont be shielding any scammers here by editing out their personal information. Now that I have all the rights to publish this information anywhere I want, I have posted his details publicly so that innocent people wont be his targets. You can also find his number on his ad on localbitcoins
https://localbitcoins.com/ad/1398455/cash-out-your-bitcoins-cash-at-atmI looked up his profile and saw that he has a verified profile on LocalBitcoin and good trading scores but yes people may be cunning at times but in this case, I don't want to sound nasty but you led yourself into this, why on earth would you release your coin to a random pervert? You broke the rules of peer-to-peer, as well as the rules of LocalBitcoin. I hope your local police can assist you, but be cautious next time.