[1] In 1975, as a leader he founded the progressive rock band Moheener Ghoraguli with Tapas Das, Abraham Mazumdar, Pradip Chatterjee, Ranjon Ghoshal, Biswanath Bishu Chattopadhyay, Tapesh Bandopadhyay.

During his college years he played lead guitar in a band called The Urge, whose members were mostly Anglo Indians, in pubs including Trincas and Moulin Rouge at Park Street of Kolkata during the 1960s.

He made A Letter to Mom, a shorter english film on the life of the Anglo Indian community that came out shortly after.

After that he made several documentaries, including 'The Dinosaurs, The sun temple of konarak to The Naya theatre and Habib Tanvir.

Gautam then began to make a film in Karbi language, which remained incomplete due to his sudden death in 1999.