New Delhi: In a significant development to the 2012 gag-rape case, Supreme Court on Monday rejected convict Mukesh Singh’s request to file fresh curative petition. Hearing the case, the top court stated that the convict has exhausted all legal remedies. Also Read - 'Allow us Euthanasia And Stop Crimes From Happening in Future,' Nirbhaya Convicts' Kin Appeal to President

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“The petition is not maintainable,” Justice Mishra said while hearing the petition. Also Read - Nirbhaya Case: Vinay Sharma Now Approaches Delhi LG, Urges to Turn His Death Penalty Into Life Sentence

The development comes after the top court last week fixed March 16 for hearing a petition filed by Mukesh Singh, seeking action against his former advocate, for restoration of his legal remedies in Nirbhaya case.

Prior to this, the current lawyer of Nirbhaya gang-rape convict had also filed a petition in the apex court against his former lawyer Vrinda Grower.

In his petition, advocate ML Sharma alleged that convict Mukesh Singh’s former lawyer Grover had allegedly hatched a criminal conspiracy against Mukesh with Delhi Police.

As per the petition, she could have waited to file a curative petition for three years but deliberately filed the curative petition early, to ensure that this petition gets dismissed and Mukesh is hanged.

The filing of the petition in the top court comes after a Delhi court issued a fresh death warrant for the four convicts — Pawan Gupta, Vinay Sharma, Akshay Singh Thakur, and Mukesh Singh — in the December 2012 Nirbhaya gang-rape and murder case for their execution at 5:30 AM on March 20.