Paytm Mobile Solutions — send money to fraud people

I had sent Rs 500 to a man as an advance payment for buying a dog, after I sent it I got a message from him saying please don't contact us further. This is a clear case of fraud and I need to complaint against them. [protected], [protected] are the 2 numbers by which he contacted me. Please take actions asap. He gave me all sorts of photos related to dogs and told me that he belonged to an NGO. I got trapped into it and sent him the money. Please help me since I just had a kind thought of adopting a dog but I got trapped in this fraud, please help me get my money back and arrest these people.