Sutanu Mitra hails from a family in Burdwan which has strong musical roots. His father, Shri Nityananda Mitra, is a noted Rabindrasangeet singer. His mother, Shrimati Shibani Mitra, played musical instrument – esraz, in her youth. But she wanted to play it in private, away from public glare.
Sutanu completed his early education from Burdwan Municipal High School. He went to Vivekananda college for graduation. He did his masters from Burdwan University in English literature.
Presently he is working as a teacher.
Writing is Sutanu’s passion. He feels writing can give one a space that is entirely his own. Whatever is there 
in the inner recesses of mind, can be dug out in writing, at a moment of ruminating solitariness which is both exhilarating and exhausting. But after the release in ooze of words, it feels like purgation; a poise in emotion, amidst earth-shaking motion of imagined world.
In kite-flying, Sutanu finds the fun of life and its inherent dangerous charm. In a string bound to a spool, a kite is stable; the moment it is cut by another prying kite or otherwise, it flies away and far away in to the skies where it becomes its own master, not remote-controlled by the flier anymore; but upto a point – if the air drops, there is an uncertainty, a struggle to fly on or land abjectly on an alien land. A cut-off kite can be inviting, teasingly chaseable, but may not always be reachable for the wildly searching humans. It is on this illuminatingly illusory aspect of kite and kite-flying, Sutanu has debuted his novel on in 14th August: A Letter which has stamped his enduring place as an Indian English literature writer.
Sutanu was trained in Indian classical music in vocal from Professor Pundit Dr.Dhruvo Tara Joshi in his childhood. Simultaneously he was learning Rabindrasangeet from his father. He performed Rabindrasangeet very early in his childhood at Naad, a musical platform instituted by Joshiji, on the latter’s birthday, which drew considerable attention from Pundit M. R. Gautam – a towering figure in the field of Indian Classical music.
A soulful Indian English literature writer, Sutanu was an awardee of Sangeet Prabhakar (Prayag Sangeet Samity,Allahabad), both in Indian classical music and Rabindrasangeet, with some distinction, when he barely crossed the double digit figure in age. Sutanu finds an immense solace in music from the turbulence which the diseased world throws up at the deceased culture and its decadent values.