Anushilan Samiti
Anushilan Samiti (Ōnūshīlōn sōmītī, "lit": body-building society) was a Bengali Indian organisation that existed in the first quarter of the twentieth century, and propounded revolutionary violence as the means for ending British rule in India. The organisation arose from a conglomeration of local youth groups and gyms ("Akhara") in Bengal in 1902. It had two prominent, if somewhat independent, arms in East and West Bengal identified as Dhaka Anushilan Samiti centred in Dhaka (modern day Bangladesh), and the Jugantar group (centred at Calcutta) respectively.
Anushilan Samiti
In the aftermath of the Manicktala conspiracy, the western Anushilan Samiti found a more-prominent leader in Bagha Jatin and emerged as the Jugantar. Jatin revitalised links between the central organisation in Calcutta and its branches in Bengal, Bihar, Orissa and Uttar Pradesh, establishing hideouts in the Sunderbans for members who had gone underground. The group slowly reorganised, aided by Amarendra Chatterjee, Naren Bhattacharya and other younger leaders. Some of its younger members, including Taraknath Das, left India. Over the next two years, the organisation operated under the cover of two apparently-separate groups: Sramajeebi Samabaya (the Labourer's Cooperative) and Harry and Sons. Around this time Jatin began attempting to establish contacts with the 10th Jat Regiment, garrisoned at Fort William in Calcutta, and Narendra Nath committed a number of robberies to raise money. Shamsul Alam, a Bengal police officer preparing a conspiracy case against the group, was assassinated by Jatin associate Biren Dutta Gupta. His assassination led to the arrests which precipitated the Howrah-Sibpur Conspiracy case.