Majumdar studied inside the jail and obtained a BA. After her release, she participated in various public welfare activities. She went to areas affected by the Noakhali riots and contributed to the relief work. Majumdar established an institution called Palli Niketan for the development of the deprived classes near Barasat. She was engaged in social work for several villages that lay under the jurisdiction of the Rajarhat police station. In 1947, she married Rakshita Roy, a revolutionary and literary figure of Bhupendra Kishore.