Anushilan Samiti
By 1902, Calcutta had three secret societies working toward the violent overthrow of British rule in India. One was founded by Calcutta student Satish Chandra Basu with the patronage of Calcutta barrister Pramatha Mitra, another was led by Bengali woman Sarala Devi and the third was founded by Aurobindo Ghosh. Ghosh was one of the strongest proponents of militant Indian nationalism at the time. By 1905 the work of Aurobindo and his brother, Barin, enabled Anushilan Samity to spread throughout Bengal. Nationalist writings and publications by Aurobindo and Barin, including "Bande Mataram" and "Jugantar", had a widespread influence on Bengal youth. The 1905 partition of Bengal stimulated radical nationalist sentiments in Bengal's Bhadralok community, helping Anushilan acquire a support base of educated, politically-conscious and disaffected members of local youth societies. Its program emphasized physical training, training its recruits with daggers and "lathis" (bamboo staffs used as weapons). The Dhaka branch of Anushilan was led by Pulin Behari Das, and branches spread throughout East Bengal and Assam. More than 500 branches were opened in eastern Bengal and Assam, linked by "close and detailed organization" to Pulin's headquarters at Dhaka. It absorbed smaller groups in the province, soon overshadowing its parent organisation in Calcutta. Branches of Dhaka Anushilan emerged in Jessore, Khulna, Faridpur, Rajnagar, Rajendrapur, Mohanpur, Barvali and Bakarganj. Estimates of Dhaka Anushilan Samiti's reach indicate a membership of 15,000 to 20,000. Within two years, Dhaka Anushilan devolved its aims from the Swadeshi to that of political terrorism.
Anushilan Samiti
The growth of the Indian middle class during the 18th century, amidst competition among regional powers and the ascendancy of the British East India Company, led to a growing sense of "Indian" identity. The refinement of this perspective fed a rising tide of nationalism in India in the last decades of the 1800s. Its speed was abetted by the creation of the Indian National Congress in India in 1885 by A.O. Hume. The Congress developed into a major platform for the demands of political liberalisation, increased autonomy and social reform. However, the nationalist movement became particularly strong, radical and violent in Bengal and, later, in Punjab. Notable, if smaller, movements also appeared in Maharashtra, Madras and other areas in the South. The movement in Maharshtra, especially Bombay and Poona preceded most revolutionary movements in the country. This movement, further, had the ideological, and by some suggestion covert but active, support of Bal Gangadhar Tilak. 1876 saw the foundation of The Indian Association in Calcutta under the leadership of Surendranath Banerjea. This organisation successfully drew into its folds students and the urban middle–class, for which it served as a mouthpiece. The Association became the mouthpiece of an informal constituency of students and middle-class gentlemen. It sponsored the Indian National Conference in 1883 and 1885, which later merged with the Indian National Congress. Calcutta was at the time the most prominent centre for organised politics, and some of the same students who attended the political meetings began at the time to organise "secret societies" which cultivated a cultural of physical strength and nationalist feelings.