Builder not ready to return advance payment post cancellation

In October 2016 I given a token amount by cheque to a builder of which even after asking many times he haven't given the receipt. He was asking for more without agreement and receipt so I cancelled the deal in Nov 2016 and asked for refund. The flat was never alloted me and he told from start that the flat is alloted to some investor and he needs to clear that allotment before alloting flat to me. Till today he haven't given my money back and he is always delaying and don't give any concrete answer. We have consulted consumer forum and they want receipt to take the case further. What all options are left with me to recover the whole amount ?