Dutt, 53, is serving the remaining 42-month term of his five-year jail sentence for possessing illegal firearms, part of the cache of weapons which were meant to be used during the 1993 serial bomb blasts in Mumbai.
Dutt was released from jail on furlough for 14 days on October 1. Later, he sought an extension of additional 14 days on medical grounds which was granted to him by the jail authorities.
It is learnt that the actor had to undergo treatment of blood clots formed in his legs due to some ailment.
The 'Munnabhai' of the celluloid will be spending Diwali in the confines of the prison, where he is reportedly given work of making eco-friendly bags.
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While leaving his home in Mumbai, Dutt said that he still has pain in his legs and appealed to fans to pray for his early release.
He also thanked the media for accepting his request to allow him privacy with his family during his parole period.
Dutt had surrendered before a special TADA court in Mumbai in May this year and was later shifted to Yerawada jail to serve the remainder of his term.