Anushilan Samiti
Anushilan and Jugantar each were organised on different lines, reflecting their divergence. "Anushilan Samiti" was centrally organised, with a rigid discipline and vertical hierarchy. Jugantar, was more loosely organised as an alliance of groups, acting under local leaders that occasionally coordinated their actions together. The prototype of Jugantar's organisation was Barin Ghosh's organisation set up in 1907, in the run-up to the Manicktolla conspiracy. It sought to emulate the model of Russian revolutionaries that was described by Frost. The regulations of the central Dhaka organization of the "Anushilan Samiti" were written down, and reproduced and summarised in government reports. According to one estimate, the Dacca Anushilan Samiti had at one point 500 branches, mostly in the eastern districts of Bengal, with 20,000 members. Branches were opened later in the western districts, Bihar, and the United Provinces. Shelters for absconders were established in Assam and in two farms in Tripura. Organisational documents shows a primary division between, on the one hand the two active leadersBarin Ghosh and Upendranath Bannerjee, and the rank-and-file on the other. Higher leaders including Aurobindo were supposed to be known only to the active leaders. Erstwhile members of "Anushilan", particularly those of the Maniktala group, had suggested that the each group were interconnected with a vast web of secret societies throughout British India. However historian Peter Heehs concludes the links between provinces were limited to contacts between a few individuals like Aurobindo who was familiar with leaders and movements in Western India. He concludes the Maniktala society had links between the other groups and the Manicktalla society, such as the Anushilan and Atmannati Samitis, were more often competitive than co-operative. An internal circular of circa 1908 written by Pulin Behari Das, describes the division of the organisation in Bengal, which largely followed British administrative divisions, with central "Samitis" linked with a few small Samitis.
History of the Anushilan Samiti
Western Anushilan Samiti in the aftermath of Manicktala Conspiracy found more prominent leader in Jatindra Nath Mukherjee which emerged distinctly as the "Jugantar group". Meanwhile, Rash Behari Bose extended the groups reach into north India, where he found work in the Indian Forest Institute in Dehra Dun. Mukherjee took over the leadership of the secret society to be known as the Jugantar Party. He revitalised the links between the central organisation in Calcutta and its several branches spread all over Bengal, Bihar, Orissa and several places in U.P., and opened hideouts in the Sunderbans for members who had gone underground The group slowly reorganised guided by Mukherjee's efforts, aided by an emerging leadership which included Amarendra Chatterjee, Naren Bhattacharya and other younger leaders. Some of its younger members including Taraknath Das left India. Through the next two years, the organisation operated under the covers of two seemingly detached organisations, "Sramajeebi Samabaya" (The Labourer's cooperative) and Harry & Sons. At around this time, Jatin began attempts to establish contacts with the 10th Jat Regiment then garrisoned at Fort William in Calcutta. Narendra Nath carried out through this time a number of robberies to obtain funds. In the meantime, However, a second blow came in 1910 when Shamsul Alam, a Bengal Police officer then preparing a conspiracy case against the group, was assassinated by an associate of Jatindranath by the name of Biren Dutta Gupta. The assassination led to the arrests which ultimately precipitated the Howrah-Sibpur Conspiracy Case.