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
The Left Consolidation Committee soon fell into pieces, as the CPI, the CSP and the Royists deserted it. Bose assembled the Anti-Compromise Conference in Ramgarh, Bihar, now Jharkhand. The Forward Bloc, the Anushilan Marxists (still members of the CSP at the time), the Labour Party and the Kisan Sabha attended the conference. The conference spelled out that no compromise towards the Britain should be made on behalf of the Indian independence movement. At that conference the Anushilan Marxists assembled to launch their own party, the "Revolutionary Socialist Party of India (Marxist–Leninist)" severing all links to the CSP. The first general secretary of the party was Jogesh Chandra Chatterji.