The four convicts were to be hanged on January 22 at 7 am in Tihar jail. Soon after the Supreme court rejected the curative petitions, Mukesh had filed his mercy plea before the President.
Akshay Singh, who had not filed the review plea earlier with the other three convicts, has now moved the apex court with a petition asking to spare him from the death penalty.
Nirbhaya's rapist's lawyer, ML Sharma, has also sought the apex court appoints and monitors special investigation team (SIT) to probe into the encounter.