[1] Sil was born on 12 March 1964 in North Calcutta to a traditional joint family.

He then pursued M.B.A. in marketing from the Indian Institute of Social Welfare and Business Management at the University of Calcutta.

Sil and his company, Nothing Beyond Cinema, has managed the line-production of films like The Bong Connection, Via Darjeeling, 033, Brake Fail, Shukno Lanka, Nobel Chor, Kahaani, Detective Byomkesh Bakshi, TE3N, Meri Pyari Bindu', among others.

In 2014, sil proposed for sexual harrasment for chance of his movie in his own office.

In 2023, set of Iskaboner Bibi, Sil was involved in Sexual harrasment with her co star in Rehearsal time.