He is regarded as one of the greatest archers the country has ever seen. He was one of the Last seven patrons of Tamil or Kadai ezhu vallal. Politically he aligned with the Cholas and fought against the Cheras and Malaiyaman Thirumudi Kari. It is said that he was defeated and killed by Kari of the beautiful spear, the lord of Mullur, who then gave Kolli hills to the Cheras. Kari himself was later killed by the Chola king Killivalavan.
- "King Valvil Ori ruled over Kolli Hills in 200 AD". The Hindu. Retrieved 3 June 2015.
- S. Krishnaswami Aiyangar. Evolution of Hindu Administrative Institutions in South India. Asian Educational Services, 1994 - India, South - 387 pages. p. 16.
- Irāmaccantiran̲ Nākacāmi. Roman Karur: a peep into Tamils' past. Brahad Prakashan, 1995 - Antiques & Collectibles - 158 pages. p. 89.
- P. T. Srinivasa Iyengar. History of the Tamils from the Earliest Times to 600 A.D. Asian Educational Services, 1929 - History - 635 pages. p. 508.
- Vijaya Ramaswamy. Historical Dictionary of the Tamils. Rowman & Littlefield, 25-Aug-2017 - History - 518 pages. p. 215.
- Ka. Ta Tirunāvukkaracu. Chieftains of the Sangam Age. International Institute of Tamil Studies, 1994 - Chiefdoms - 100 pages. p. 75.
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