Fraud against property by Real Estate Broker and Builder

I have booked 2 pieces of Plot in Bhiwadi with the help of a Real Estate Broker and paid money-. Now it has come to my notice that the project in which I booked was a fraud project and supposedly run by a cartel between the broker and builder, who issued fake receipts for the cash paid. On pursuance, the broker issued refund cheques and took back the original receipts from me. Now the cheques are bouncing and the broker has absconded with his family, however the other person who issued receipts in lieu of cash paid is running his business in Bhiwadi. I have photocopies of receipts and allotment letter for the project. It was agreed that we'll sign an agreement once I pay 45% money, which I have paid. But now I don't have any agreement and my original receipts have also been taken back by issuing cheques. How can I get my hard-earned money back from these people?