The Left Front is an alliance of Indian left-wing parties.The Left Front that assumed office for the first time in 1977 comprised six parties. They were, the Communist Party of India (Marxist), the Forward Bloc, the Revolutionary Socialist Party, the Marxist Forward Bloc, the Revolutionary Communist Party of India and the Biplabi Bangla Congress.However, in the Lok Sabha elections of 1980 the Communist Party of India had informal seat adjustments with the Left Front.It joined the Front in 1982.