OLX.in - Scam on the pretext of buying

This guy on the pretext of buying cooler asked for my number. When I gave he said he is an army guy. He said he will transfer the amount Rs. **** online through Google Pay and his wife will come to pick it up in the morning. I told him not to do it online but he insisted. I said fine and gave him the UPI ID through a text message. But he said he has some device in the army camp where he could only scan it so asked for the QR code. I sent him through Whats-app (my first mistake but later realized picking his call and talking to him was a mistake). Then he said I need to transfer him the amount so that he'll transfer me back. First, he requested Rs * from her and then he transferred back Rs ** (This money was transferred to SAHID **********@paytm and the other one was requesting Rs. **** which was EEVWAR, **********) saying its gonna work like this. Luckily my account had only just Rs. *** but he insisted I add Rs.**** so he could transfer Rs. **** back. Even after saying no multiple times he called and said to add.
After this I blocked him but he has my picture and I'm scared what if he misuses it. Please, this is not the first time, I have seen many of these in Quora. Help, please.