AMBIKA CHAKRABORTHY.. He was member of jugantar party and he took part in Chittagong raid on police armoury. entire communication net work in Chittagong was disabled in which he played his role.He escaped after the action. But in an encounter at jalalabad he was seriously injured, but e he. escaped. the police arrested him later from his hideout and sentenced to death by a court , the sentence was reduced to life term and he was sent to port blair. in ,1946 he was released. He joined communihst party if India and got elected to the state legislature..