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.
Ponnambalam Arunachalam
Arunachalam's became interested in politics during his university days. He agitated for political reform whilst still working in the civil service. In retirement Arunachalam became involved in politics, founding the Ceylon National Association and the Ceylon Reform League, of which he was chairman, in 1917. He was one of the founders of the Ceylon National Congress (CNC) in 1919 and served as its first president from 1919 to 1920. Arunachalam left the CNC in 1921 following disputes about communal representation in the Legislative Council, which Arunachalam opposed, and the connivance of Sinhalese politicians which resulted in no Tamils being elected from Western Province at the 1921 legislative council election. He founded the Ceylon Tamil League in 1923.