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.
Anushilan Samiti
A large proportion of the cadre of the "Samiti's" component groups came from upper castes. By 1918, nearly ninety percent of the revolutionaries killed or convicted were from the Hindu castes of "Brahmin"s," Kayastha"s or "Vaishya"s. As the "Samiti" spread its influence to other parts, particularly north India, it began to draw people of other religions and of varying religious commitments. For example, many who joined the Hindustan Republican Socialist Association were Marxists and many were militant atheists. By the late 1930s, the membership had changed somewhat in the participation of members with more secular outlook. Wings of the "Samiti" also included prominent participation from women. Amongst the most famous of the latter were Pritilata Waddedar who led a Jugantor attack during the Chittagong Armoury raid, and Kalpana Dutta who manufactured bombs at Chittagong.