The actor earlier had declared that he would not appeal for pardon, rather he would follow the Supreme Court's verdict in connection with Bombay Blasts 1993 case.
The apex court found the actor guilty of acquiring illegal weapons from those blamed for the bombings in Mumbai that killed 257 people and was given four weeks to surrender.
The court upheld Dutt's conviction but reduced his sentence from six to five years in the 1993 Mumbai blasts case. Since the actor has already served 18 months of jail, now he has to spend another three-and-half-year in prison. Dutt has to surrender within four week's of apex court judgement.
Many celebrities and politicians joined the group demanding pardon for Dutt as they believe that he has already suffered a lot.
Jaya Bachchan, Rajinikanth, Markandey Katju, Shatrughan Sinha, Jaya Prada, Amar Singh and many others are there in the group.
The new entrant in the group is actor-turned-politician Chiranjeevi who on Thursday, April 4 said, "He has suffered a lot. If he gets mercy, then nothing like it. He is regretting what he has done. He is a nice person. I pray for him from the bottom of my heart. My sympathies are with him."
However, many politicians such as Uma Bharti called Dutt a "criminal", a "traitor". The BJP leader recently claimed that Dutt should not be pardoned as he had ditched the country during Bombay Blasts 1993.
Sanjay Dutt, who has already spent 18 months in jail, has to spend three and half years behind the bar.