Wikipedia
Mahaan (Hindi: महान, English: Great or Famous) is a 1983 Hindi action drama film produced by Satyanarayana and Suryanarayana and directed by S. Ramanathan. The film stars Amitabh Bachchan in triple roles alongside Waheeda Rehman, Parveen Babi, Zeenat Aman, Ashok Kumar, Amjad Khan, Kader Khan, Aruna Irani, Sujit Kumar and Shakti Kapoor. The music is by R.D. Burman.
The film is a remake of the Kannada film Shankar Guru (1978) that stars Rajkumar. Amitabh Bachchan was playing a triple role in the film after playing double roles in several of his earlier films. The concept of a 'triple role' was unusual.
The song 'Pyaar Mein Dil Pe Maar De Goli' which featured in the movie was also popular. Amitabh plays all the three characters differently which proves his versatility. The film did fairly well at the box office.
Mahaan is a 1992 Indian Malayalam film, directed by Mohan Kumar, starring Suresh Gopi and Geetha in the lead roles.