History of the Anushilan Samiti
Around 1902, Aurobindo Ghosh arranged for Bannerjee to return to Calcutta to begin organisational work, where he began a gymnasium and a youth society. It was at this time that Bannerjee came in touch with Vibhuti Bhushan Bhattacharya, Sarala Devi Ghoshal and Pramathanath Mitra. In Calcutta, a few clubs and societies were still active at the time. Most notable was a gymnasium in Ballygunge Circular Road run by Sarala Devi herself, a second was an organisation named "Anushilan Samiti" founded by Satish Chandra Basu with the patronage of Pramathanath Mitra. A third one was a youth club called "Attōnnōti Samiti" (Self-improvement society) in central Calcutta.
Khan Bahadur Ahsanullah
Then, in 1958, Ahsanullah founded the Dhaka Ahsania Mission (DAM), a non-profitable organization with broad social goals. DAM founded the Ahsanullah University of Science and Technology (AUST), Khan Bahadur Ahsanullah Teachers Training College (KATTC), Ahsania Mission College (AMC), Ahsanullah Institute of Information & Communication Technology (AIICT)], Ahsania Mission Institute of Medical Technology (AMIMT), Ahsania Institute of Technology and Business (AITB), Ahsania e-Solutions (AeS), Ahsania Mission Book Distribution House (AMBDH), Ahsania Mission Cancer & General Hospital (AMCGH), and NCAM also founded Nalta Sharif Ahsania Mission Orphanage (NSAMO) at Dhaka, naming it in honor of their founder.