Alongside a day job, Soumitra dabbles extensively in writing, acting, music and direction. For the last 12 years he has been an active member in the theatre scene in Delhi, Jamshedpur, Kolkata, Pune and Mumbai in English, Hindi and Bengali plays in various capacities, as an actor, director and scriptwriter. He has adapted, directed and acted in numerous plays, notable among them being Manto's Tetwal ka Kutta and Toba Tek Singh, a stage adaption of 12 Angry Men, etc. He is passionate about the art of storytelling, which led to him co-founding the Tantra Theatre Group, committed to explore unique, alternate and experiential modes of storytelling.