Kinjal Nanda

Karna Subarna'er Guptodhon, the third film of Guptodhon Franchise, brings back another thrilling adventure of Sona da, Abir & Jhinuk. Invited for a wonderful occasion, the trio's vacation soon turns into a dangerous quest for the greatest treasure of Bengal. As Sona Da will try to unlock every clue, his wit and mind will constantly get challenged, while his loved ones will be put on parole and his entire adventure will be under a web of threats until he unearths one of the greatest treasures that Bengal has ever known.

Set in the troubled Naxalite period of Bengal, 1971, Byomkesh Bakshi gets involved in a story of revenge when he decides to attend a play at the theatre and becomes witness to a crime unfolding on the center stage.

The film is a biopic, based on the life famous director Hiralal Sen and how he contributed to Indian Cinema.