Following is a list of Sri Lankan Tamil militant groups.
Student organizations
TSL – Tamil Students League [Tamil Manavar Peravai] (1970), founded by Ponnuthurai Satyaseelan. See also, TYL. TYL – Tamil Youth League [Tamil Ilaignar Peravai] (1973), the progenitor of Eelam Tamil militancy. GUES – General Union of Eelam Students, part of EROS and forerunner of EPRLF.
Major groups
LTTE Liberation Tigers of Tamil Eelam - was the only remaining armed Tamil nationalist group, after successfully liquidating other groups. LTTE was defeated militarily by the Sri Lankan armed forces in May 2009. The leader was V. Prabakaran. EPRLF Eelam People's Revolutionary Liberation Front - a part of the TNA. The leader was K. Pathmanabha TELO Tamil Eelam Liberation Organization -once decimated by the LTTE, part of TNA The leader was Kutimani(nickname) & Sri Sabaratnam PLOTE People's Liberation Organisation of Tamil Eelam - a minor standalone political party accused of being a paramilitary; the PLOTE, unlike other groups, vehemently denies this. The leader was Uma Maheswaran EROS Eelam Revolutionary Organisation of Students - largely active in the 1970s and 1980s. The leader was V.Balakumar ENDLF Eelam National Democratic Liberation Front - created with the help of the IPKF, now active in India in refugee settlements in Orissa. The leader was Paranthan Rajan EPDP Eelam People's Democratic Party - pro-government group and a political party accused of being a paramilitary The leader is Douglas Devananda (Former member of EPRLF left to form EPDP) TMVP - a LTTE splinter group, a pro-government group accused of being a para-military organization ICMM - Indo Ceylon Merger Movement (Inththiya Ilanggai Innaippu Iyakkam). (1971–1980) TNT - Tamil New Tigers (Puthiya Thamil Pulikal). (1972–1976) predecessor to LTTE TLO - Tamil Liberation Organization. (1974–1978)
Militant fronts
Upsurging People's Force - active in the North in the 2000s (decade). Ellalan Padai - A front organization of LTTE. Ravanan Padai - Considered to be a front of LTTE. Senan Padai - Considered to be a front of LTTE splinter group Tamil Makkal Viduthalaip Pulikal. Officials of the Tamil Makkal Viduthalaip Pulikal have denied any connections. Seerum Padai - A shadowy group calling itself Seerum Padai claimed responsibility for murder of Member of Parliament N. Raviraj. The LTTE splinter group TMVP has claimed no connections with it. People's Liberation Army - Supposed new Sri Lankan militant group operation in Eastern Province, Sri Lanka
Political front parties
TSK – Tamilar Suya-Aadchi Kazhakam (1969), of V. Navaratnam; a splinter group of ITAK. ETOM – Eela Thamilar Ottrumai Munnani (1960), of Chellappah Suntharalingam; became a minor constituent of the TULF. DPLF – Democratic People's Liberation Front, the political wing of PLOTE, of D.Siddarthan. PFLT – People's Front of Liberation Tigers (1989), now defunct political party of the LTTE. ENLF – Eelam National Liberation Front (1985–1986), a short-lived union of the LTTE, EROS, TELO and EPRLF. LTTE wiggled out of this union. TELF – Tamil Eelam Liberation Front (1982), of S.C. Chandrahasan, M.K. Eelaventhan, journalist Kovai Mahesan and S. A. Tharmalingam; a splinter group of the TULF. ENDLF – Eelam National Democratic Liberation Front (1987), a group created by RAW from PLOTE, EPRLF and TELO.