Anushilan Samiti
Anushilan Samiti (Ōnūshīlōn sōmītī, "lit": body-building society) was a Bengali Indian organisation that existed in the first quarter of the twentieth century, and propounded revolutionary violence as the means for ending British rule in India. The organisation arose from a conglomeration of local youth groups and gyms ("Akhara") in Bengal in 1902. It had two prominent, if somewhat independent, arms in East and West Bengal identified as Dhaka Anushilan Samiti centred in Dhaka (modern day Bangladesh), and the Jugantar group (centred at Calcutta) respectively.
Mokshadacharan Samadhyayi
Nanigopal and Jatindra had originally been members of the Kolkata Anushilan Samiti and acted directly under Sri Aurobindo's guidance, maintaining a constant collaboration. After quarrelling with Satish Basu, Nanigopal absorbed most of the members of Mokhoda-cum-Kartik's dispersed group, since the latter's arrest. Amaresh and Satish Sarkar worked under Jatindranath Mukherjee. Belonging to Indra's group (Atmonnati), Bepin Ganguli, Noren Bose and Noren Chatterji, too remained close to Jatindra's policy. These revolutionaries committed sixteen outrages between March 1908 and October 1909. Denham noted in 1909 on the 'Sarathi Jubak Mandali': "perhaps second only in importance to the Anushilan Samiti for the number of persons included in its ranks who actually took part in crimes of violence".