Nesadurai Thirunesan (11 November 1949 – 10 January 2005; commonly known by the nom-de-guerre Shankar Rajee) was a Sri Lankan Tamil militant and one of the founders of the Eelam Revolutionary Organisation of Students.

[5] Whilst in London, Thirunesan, along with V. Balakumaran, Balanadarajah Iyer and E. Ratnasabapathy, founded the Eelam Revolutionary Organisation of Students (EROS), one of the earliest Tamil militant groups, in 1975.

[7] It formed alliances with other government backed paramilitary groups such as the Eelam People's Democratic Party (EPDP).

[6] Shankar Rajee lived in Madras, India so Sudha Master ran the EROS operations in Colombo.

[6] Shankar Rajee was arrested in Madras 1997 for smuggling foreign currency out of India and spent a year in jail.