Nirbhaya Case: What legal remedies do the convicts still possess

Delhi court has issued a fresh date for execution of death warrant against all the four convicts in Nirbhaya case on Monday. The court said convicts to be executed on March 3 at 6 am. 
Additional Sessions Judge Dharmendra Rana pronounced the order on a petition seeking issuance of fresh date for execution of death warrants in the Nirbhaya case of December 2012.
The fourth convict Pawan has still two mercy pettitions left.