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.
Prafulla Chandra Ghosh
Prafulla Ghosh got interested in Swadeshi movement and by inspired by armed revolution of Dhaka Anushilan Samiti and joined then in 1909. However, he did not like the activities of raising money by theft and cycle of theft defend in the court and finally quit Anishilan Samity in 1913 and focused on academics. During the same time, while working on Damodar flood relief met Surendranath Banerjee and other moderate leaders. Yogendra Nath Saha introduced Prafulla Ghosh to non-violent principles of Gandhi. At the beginning, Gadhian principles did not impress him but he was moved by Gandhi's speech at Dhaka in December 1920 and soon afterward met with Gandhi in Calcutta. In Jan, 1921 Prafulla Ghosh resigned from his job at Calcutta mint and along with other members of Anami Sangha joined freedom struggle movement led by Gandhi.