Bijoy Kumar Sinha was a revolutionary freedom fighter of India. Born 17.01.1909, Kanpur, s/o Markand das Sinha, was a student of Christ Church College, while a school student became an active member of H.R.A ajoy ghosh and batukeshwar Dutta was his classmate. Ajoy Ghosh was convicted in Lahore Conspiracy case. Remained underground for about 2 years. Undergone hunger strike at Lahore Jail. Sentenced for transportation of life. Deported to the Andamans. Participated in the hunger strike. Repatriated in 1937. released in 1938but afterwards kept in detention from 1941--1945. Total jail period 17 years. His brother Raj Kumar Singh was convicted in Kakori Case.