A obtains a decree against B for Rs. 2000. It is subsequently agreed between A and B that A should accept Rs. 1000 in full satisfaction of the certified to the court. A applies for execution of the full amount of the decree not whitening receipt by him of? 1000. B objects to the execution on the ground that the decree has been adjusted and the payment has been made. The payment not being certified cannot be recognized by the court executing the decree, and the court must direct execution to issue.