Dr. S. Ramadoss (born 25 July 1939) [AKA Dr.Ayya] is an Indian politician from Tamil Nadu. He is the founder and presiden of the Pattali Makkal Katchi. He is father of Kavita ,Sriganthi Parsuraman , and R. Anbumani.
Ramadoss was born on 25 July 1939 in Kilsiviri (also spelled Keezhsiviri) village, Villupuram, Madras Presidency (now Tamil Nadu) to Sanjeevi Rayar Gounder and Navaneetham Ammal. They belonged to the Vanniyar community and were farmers.
In 1987, the Vanniyar Sangham under Ramadoss organized the 1987 Vanniyar reservation agitation demanding MBC status for Vanniyars. At the peak of the protests, the state was paralysed for a week when lakhs of trees were felled, highways blocked and damaged and more than 1400 houses of the Dalit community burned down. The police under the M G Ramchandran (MGR) led AIADMK government shot down 21 protestors. Later in 1989, the DMK government under M. Karunanidhi granted them 20 percent reservation under the Most backward class. The Pattali Makkal Katchi, founded by S. Ramadoss on 16 July 1989, emerged from these protests.