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
Anushilan's campaign continued. In 1911 Dhaka Anushilan shot dead Sub-inspector Raj Kumar and Inspector Man Mohan Ghosh, two Bengali police officers investigating unrests linked to the group, in Mymensingh and Barisal. This was followed by the assassination of CID head constable Shrish Chandra Dey in Calcutta. In February 1911 Jugantar bombed a car in Calcutta, mistaking an Englishman for police officer Godfrey Denham. Rash Behari Bose (described as "the most dangerous revolutionary in India") extended the group's reach into north India, where he found work in the Indian Forest Institute in Dehra Dun. Bose forged links forming with radical nationalists in Punjab and the United Provinces, including those later connected to Har Dayal. During the 1912 transfer of the imperial capital to New Delhi, Viceroy Charles Hardinge's "howdah" was bombed; his "mahout" was killed, and Lady Hardinge was injured.