Token advance not giving back

I have given token advance 25k to buy house in society area, the next day i came to know through lawyer, in society area we cant buy house nor use for commercial purpose after lawyer read house documents. i asked owner to give full details of society and signs from all society members to give authority permission to sell or buy to me.He didnt provide anything to me instead by words only he is saying i will give you. One week i waited for him to give proper documents but he failed , so that i said to him i dont want that property give back my money. The token advance we didnt write any agreement but i given infornt of house brokers(two) and my family. Please help me how to get back my money now. the house owner now is denying to give back money instead he is telling its loose for him i need to give back more money. he sold house after week i refused to buy the house. what action i can take, its been happened more than 6 months now, every week i am calling my agent to take some action.