A. Issue a legal notice to the builder to refund the entire amount with interest towards the delay or non started construction as promised by the builder.
B. Later, you can move consumer court to claim additional compensation under the deficiency in the Service or you can recover this amount with interest by initiating summary proceedings before the Civil Court. Moreover, you can claim damages for metal agony or harassment.
C. You can collect post dated cheque from the builder for additional security towards your amount. In case, no fund in the builder account, you can initiate criminal proceedings against him to punish under the law.
D. The Court will resolve you issue by following due process of law example summons, written statement/version, hearing, evidence etc.,once you approached the Court. However, if the both parties willing to settle the matter out of the court amicably then court may consider your interim application. Per contra, the Court may give direction to the defendant/builder to refund the amount with interest by specifying the time also in the event of non compromise.