In the early 1970s, United Front government of Sirimavo Bandaranaike introduced the policy of standardisation to rectify the low numbers of Sinhalese being accepted into university in Sri Lanka. A student named Satiyaseelan formed Tamil Manavar Peravai (Tamil Students League) to counter this biased move. This group comprised Tamil youth who advocated the rights of students to have fair enrollment. Inspired by the failed 1971 insurrection of Janatha Vimukthi Peramuna, it was the first Tamil insurgent group of its kind. It consisted of around 40 Tamil youth, including Ponnuthurai Sivakumaran (later, the leader of the Sivakumaran group), K. Pathmanaba (one of the founder members of EROS) and Velupillai Prabhakaran, an 18-year-old youth from single caste-oriented Valvettithurai (VVT). In 1972, Prabhakaran teamed up with Chetti Thanabalasingam, Jaffna to form the Tamil New Tigers (TNT), with Thanabalasingham as its leader. After he was killed, Prabhakaran took over. At the same time, Nadarajah Thangathurai and Selvarajah Yogachandran (better known by his nom de guerre Kuttimani) were also involved in discussions about an insurgency. They would later (in 1979) create a separate organisation named Tamil Eelam Liberation Organization (TELO) to campaign for the establishment of an independent Tamil Eelam. These groups, along with another prominent figure of the armed struggle, Ponnuthurai Sivakumaran, were involved in several hit-and-run operations against pro-government Tamil politicians, Sri Lanka Police and civil administration during the early 1970s. These attacks included throwing bombs at the residence and the car of SLFP Jaffna Mayor, Alfred Duraiyappah, placing a bomb at a carnival held in the stadium of Jaffna city (now "Duraiyappah stadium") and Neervely bank robbery. The Tamil conference incident in 1974 also sparked the anger of these militant groups. Both Sivakumaran and Prabhakaran attempted to assassinate Duraiyappah in revenge for the incident. Sivakumaran committed suicide on 5 June 1974, to evade capture by Police. But on 27 July 1975, Prabhakaran was able to assassinate Duraiyappah, who was branded as a "traitor" by TULF and the insurgents alike. Prabhakaran himself shot and killed the Mayor when he was visiting the Krishnan temple at Ponnalai.