Achintya Kumar Sengupta (Bengali: অচিন্ত্যকুমার সেনগুপ্ত) )(1903-1976), was a renowned Bengali author. He was born in Noakhali, now in Bangladesh.
At the age of 13, after his father's death, Sengupta moved to Calcutta, where he completed his schooling. He got a B. A. Honours degree from South Suburban College in English, followed by an M. A. degree from the University of Calcutta. Subsequently he obtained a degree in Law and entered the judicial service, where he served until his retirement, after having been a district judge and a Special Judicial Officer.
He started writing under a pen name, ‘Niharika Debi’. He contributed to almost all genres of Bengali literature, but is best remembered for his novels and short stories. In all, he wrote more than 100 books.
Sengupta was closely associated with the famous magazine Kallol, and was its editor for some time.
His literary works have been included in the curriculum of school level, secondary, higher secondary and graduation level Bengali Literature in Bangladesh.