Regarding refund of booking amount

I had given 51000/- and 150000/- through cheque to book a plot, and signed a application form in which it is written that "i further agree to pay the installments if failing which the allotment is cancelled and the earnest money will be fortified". their is no legal agreement/allotment is executed between me and builder. the property cost is 1681000/- plot size is 1000 sq ft. guideline is of 1050 sq feet. that is legal property cost is 1050000/- only but the builder is selling me this property at 1681000/- , i paid the 200001/- through cheque and have color copy of the receipts. the colony is under development and is rera registered. the bank is saying that the colony is under development and till full development we cant execute registry. i give them in written that "your colony is under development and it seems like to take couple of months to complete development."i cant wait so long, so kindly refund my amount and submitted application along with the original receipts( do not get any acknowledgment receipt) their is no tenature for payment conditions of installments in the application form. 2 days passes , will my amount can be fortified by the builder?????