New Delhi: The fourth and final death row convict in the gruesome Nirbhaya gangrape and murder case, Pawan Kumar Gupta, on Friday filed a curative plea before the Supreme Court. Gupta (25) is among the four convicts scheduled to be executed on March 3. Also Read - Delhi Oxygen Crisis: Supreme Court asks Centre for a Plan by 10:30 am Today, Stays HC's Contempt Proceedings

In his petition, Pawan Gupta sought commutation of his death penalty into a life imprisonment sentence, his counsel AP Singh said. Delhi’s Patiala House Court had signed fresh death warrants for the four accused giving them for the third time this month. The remaining three convicts have already exhausted their final legal remedies of filing a curative and the subsequent mercy plea with the President. Also Read - Centre Faces Tough Question as Pressure Mounts to Impose Full Lockdown in India to Beat COVID Surge

Last week, convict Vinay Gupta had made yet another attempt to delay the hanging by trying to swallow staple pins inside his prison cell.  However, prison officials managed to stop him just in time. He was later treated at the prison hospital. Also Read - Supreme Court Quashes Maratha Reservation Plea, Says 'No Ground' For More Than 50% Quota

The execution had already been postponed twice from previous dates of January 22 and February 1 as all legal remedies were not exhausted by the convicts.