Leela Nag formed a rebellion organization in December 1923 called Deepali Sangha ("Dipali Sangha") in Dhaka where combat training were given. Pritilata Waddedar took courses from there. She took part in the Civil Disobedience Movement and was imprisoned for six years. In 1938, she was nominated by Congress President, Subhas Chandra Bose to the National Planning Committee of the Congress. In 1939 she married Anil Chandra Roy. On Bose's resignation from the Congress, the couple joined him in the Forward Bloc.