Political history of Sri Aurobindo
Anushilan Samiti was founded as an attempt to organize Bengali youth through a program of physical fitness and spiritual training for a nationalist program. By 1902, Calcutta had three societies working under the umbrella of Anushilan Samity, a society earlier founded by a Calcutta barrister by the name of Pramatha Mitra. These included Mitra's own group, another led by a Bengali lady by the name of Sarala Devi, and a third one led by Aurobindo Ghosh. The Anushilan Samiti had Aurobindo and Deshabandhu Chittaranjan Das as the vice-presidents, Suren Tagore the treasurer. Jatindra Nath Banerjee (Niralamba Swami), Bagha Jatin, Bhupendra Nath Datta (Swami Vivekananda's brother), Barindra Ghosh were among other initial leaders.
By 1905, the work of Aurobindo and his brother Barin Ghosh allowed Anushilan Samity to spread through Bengal.
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.