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"Sir" is a 1993 biographical drama film helmed by Mahesh Bhatt, based on the life of don-turned-activist Haji Mastan Mirza, played by Naseeruddin Shah. Co-starring Pooja Bhatt, Paresh Rawal, and Ashutosh Gowariker, the film follows Mastan's rise to prominence in the Mumbai underworld and his subsequent transformation into a social reformer.