Dhaka Anushilan Samiti
Dhaka Anushilan Samiti was a branch of the Anushilan Samiti founded in the city of Dhaka in November 1905. Initially a group of eighty under the leadership of Pulin Behari Das, it "spread like wildfire" throughout the province of East Bengal. More than 500 branches were opened, linked by a "close and detailed organization" to Pulin’s headquarters at Dhaka. It absorbed smaller groups in the province and soon overshadowed its parent organisation in Calcutta. Branches of Dhaka Anushilan emerged in the towns of Jessore, Khulna, Faridpur, Rajnagar, Rajendrapur, Mohanpur, Barvali, Bakarganj and other places. Estimates of Dhaka Anushilan Samiti's reach show a membership of between 15,000 and 20,000 members. Within another two years, Dhaka Anushilan would devolve its aims from the Swadeshi to the dedicated aim of political terrorism. The "Dhaka Anushilan Samiti" embarked on a radical program of political terrorism. It broke with the "Jugantar group" due to differences with Aurobindo's approach of slowly building a base for a revolution with a mass base. The Dhaka group saw this as slow and insufficient, and sought immediate action and result. It was responsible for a number of political assassinations, most notably the murder of D.C. Allen. However, it reached a temporary halt after the arrest and deportation of Pulin Das and the Barisal Conspiracy Case in 1913. Dhaka Anushilan decided not to participate in the German plot of World War I. After the war, it continued in its violent movement, and some of its members went on to form the Neo-violence group.
Bagha Jatin
Several sources mention Jatin as being among the founders of the Anushilan Samiti in 1900, and as a pioneer in creating its branches in the districts. According to Daly's Report: "A secret meeting was held in Calcutta about the year 1900 [...] The meeting resolved to start secret societies with the object of assassinating officials and supporters of Government [...] One of the first to flourish was at Kushtea, in the Nadia district. This was organised by one Jotindra Nath Mukherjee ["sic"!].". Nixon reports further : "The earliest known attempts in Bengal to promote societies for political or semi-political ends are associated with the names of the late P. Mitter, Barrister-at-Law, Miss Saralabala Ghosal and a Japanese named Okakura. These activities commenced in Calcutta somewhere about the year 1900, and are said to have spread to many of the districts of Bengal and to have flourished particularly at Kushtia, where Jatindra Nath Mukharji ["sic"!] was leader." Bhavabhushan Mitra's written notes precise his presence along with Jatindra Nath during the first meeting. A branch of this organisation (Anushilan Samiti), was to be inaugurated in Dacca. In 1903, on meeting Sri Aurobindo at Yogendra Vidyabhushan's place, Jatin decides to collaborate with him and is said to have added to his programme the clause of winning over the Indian soldiers of the British regiments in favour of an insurrection. W. Sealy in his report on "Connections with Bihar and Orissa" notes that Jatin Mukherjee "a close confederate of Nani Gopal Sen Gupta of the Howrah Gang (...) worked directly under the orders of Aurobindo Ghosh."