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.
Revolutionary Socialist Party (India)
The Anushilanites distrusted the political lines formulated by the Communist International. They criticised the line adopted at the 6th Comintern congress of 1928 as 'ultra-left sectarian'. The Colonial theses of the 6th Comintern congress called upon the communists to combat the 'national-reformist leaders' and to 'unmask the national reformism of the Indian National Congress and oppose all phrases of the Swarajists, Gandhists, etc. about passive resistance'. Moreover, when Indian left-wing elements formed the Congress Socialist Party in 1934, the CPI branded it as Social Fascist. When the Comintern policy swung towards Popular Frontism at its 1935 congress, at the time by which the majority of the Anushilan movement were adopting a Marxist–Leninist approach, the Anushilan Marxists questioned this shift as a betrayal of the internationalist character of the Comintern and felt that the International had been reduced to an agency of Soviet foreign policy. Moreover, the Anushilan Marxists opposed the notion of 'Socialism in One Country'.