Memon, the only convict on death row in the case, handed over his mercy petition to the authorities of the Central Prison in Nagpur.
The family had planned to call on Yakub Memon early this month and had already booked the train tickets on July 4.
Gangubai Kathiawadi dominated the 68th Filmfare awards, held on April 27 in Mumbai, as it picked up 10 awards including Best Film, Best Director for Sanjay Leela Bhansali and Best Actress for Alia Bhatt.