Cheating case - Person took money and promised to offer Home.

Dear Sir/Madam, In the year 2012, through one of my family relative, i introduced to a person who was an agent dealing in Bank Auction Rooms ( This is what i have been told). My relative asked me to believe in him since he saw him giving rooms legally to others successfully. So i trusted him and paid Rs.50000/- in cash and 800000/- in 2 separate cheuqes on his name. That time the situation was like, i have to issue a cheque on his name anyhow, he told me that i will not get room if issue a cheque to Bank where that room was sealed with. I borrowed money from banks, my relatives and ever mortgage all my Gold and paid him whole amount what he asked for. Sir, till todays i never received this money back. He is picking up my call and always giving false commitments. he even gave me cheque of Rs.850000 but asked me to deposit on one date, but it got bounced back. After this he never gave me proper reply on this. He never tells me what is going on, how he is going to pay me back. I am so frustrated and dipressed. I neither get room nor my money. When i realized that he is cheating with me, i went to the flat, which he showed me and found actual owner living there and room is no more sealed. Please help me how to handle this case. Its been 4 years now.