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.
Emperor vs Aurobindo Ghosh and others
In the aftermath of the Manicktala conspiracy, the western Anushilan Samiti found a more-prominent leader in Bagha Jatin and emerged as the Jugantar. Jatin revitalised links between the central organisation in Calcutta and its branches in Bengal, Bihar, Orissa and Uttar Pradesh, establishing hideouts in the Sunderbans for members who had gone underground. The group slowly reorganised, aided by Amarendra Chatterjee, Naren Bhattacharya and other younger leaders. Some of its younger members, including Taraknath Das, left India. Between 1909 and 1914, the group continued its campaign against the interests, making a number of attempts on the lives of Raj officials with variable successes. In a concerted attempt of revenge, Ashutosh Biswas, an advocate of Calcutta High Court in charge of the prosecution of the Gossain murder case, was shot dead within Calcutta High Court in 1909. In 1910, Shamsul Alam, Deputy Superintendent of Bengal Police responsible for investigating the Alipore Bomb case, was shot dead on the steps of Calcutta High Court. Naren Bannerjee, the police officer who arrested Kshudiram Bose, was murdered in 1910. These assassinations led up to the uncovering of Jatin's network, precipitating the Howrah-Sibpur Conspiracy case. Undeterred, the Samiti's networks continued the attempts on political violence and assassinations, using its base in Chandernagore. The most notable was the attempt on the life of Viceroy of India in 1912 in a conspiacy headed by Rash Behari Bose. However, the most serious threat organised by the Samiti arose in 1914 when, with the clouds of war gathering in Europe in 1914, the Samiti began liaising with revolutionary groups abroad and with Imperial Germany to overthrow the British Raj with a Pan-Indian Mutiny.