Her father was a deputy magistrate posted in Bihar, and her mother was the daughter of Bengali writer, technologist and entrepreneur Upendrakishore Ray Chowdhury.
[4] She completed her matriculation from the Brahmo Balika Shikshalaya and IA from St. John's Diocesan Girls' Higher Secondary School in Calcutta.
[citation needed] Das was a member of the faculty of the Department of Philosophy in the Victoria Institution immediately after her education.
[8] Along with her elder sister, Kalyani Karlekar, in the 1930s and 1940s she edited a Bengali a women's magazine Meyeder Katha.
[9] The Goenda Gondalu (translated into English as the Lu Quartet by Swapna Dutta),[2] are four young schoolgirls who solve mysteries.
[11] She wrote a book about the childhood days of her cousin Satyajit Ray, Shaat Rajar Dhon Ek Manik.