Political history of Sri Aurobindo
Anushilan Samiti was founded as an attempt to organize Bengali youth through a program of physical fitness and spiritual training for a nationalist program. By 1902, Calcutta had three societies working under the umbrella of Anushilan Samity, a society earlier founded by a Calcutta barrister by the name of Pramatha Mitra. These included Mitra's own group, another led by a Bengali lady by the name of Sarala Devi, and a third one led by Aurobindo Ghosh. The Anushilan Samiti had Aurobindo and Deshabandhu Chittaranjan Das as the vice-presidents, Suren Tagore the treasurer. Jatindra Nath Banerjee (Niralamba Swami), Bagha Jatin, Bhupendra Nath Datta (Swami Vivekananda's brother), Barindra Ghosh were among other initial leaders.
By 1905, the work of Aurobindo and his brother Barin Ghosh allowed Anushilan Samity to spread through Bengal.
History of the Anushilan Samiti
Soon after the Tripuri session, Bose resigned as Congress president and formed the Forward Bloc. The Forward Bloc was intended to function as a unifying force for all leftwing elements. The Forward Bloc held its first conference on 22–23 June 1939, and at the same time a Left Consolidation Committee consisting of the Forward Bloc, CPI, CSP, the Kisan Sabha, League of Radical Congressmen, Labour Party and the Anushilan Marxists. Bose wanted the Anushilan Marxists to join his Forward Bloc. But the Anushilan Marxists, although supporting Bose's anti-imperialist militancy, considered that Bose's movement was nationalistic and too eccletic. The Anushilan Marxists shared Bose's view that the relative weakness of the British empire during the war should have been utilised by independence movement. At this moment, in October 1939, J.P. Narayan tried to stretch out an olive branch to the Anushilan Marxists. He proposed the formation of a 'War Council' consisting of himself, Pratul Ganguly, Jogesh Chandra Chatterjee and Acharya Narendra Deva. But few days later, at a session of the All India Congress Committee, J.P. Narayan and the other CSP leaders pledged not to start any other movements parallel to those initiated by Gandhi.