PMK cadres in hundreds of vehicles were on their way to attend the youth conference at Mahaballipuram. Some PMK cadre stopped near a bus stop at a Dalit village in Marakkanam colony and consumed alcohol. The injured villagers warned others in their hamlet and a huge number of Dalits blocked on the East Coast Road and demanded that the perpetrators be apprehended by the police. This block stranded the PMK vehicle convoy. Unable to reach their destination, the PMK members went on a rampage. A group of PMK members entered Kattayan Theru, a Dalit settlement, and hurled petrol bombs at the Dalit houses which burned down nine huts. The majority of Kattayan Theru's population are followers of the
Viduthalai Chiruthaigal Katchi (VCK). The
Shore Temple which is one of the World Heritage Site was desecrated by PMK members who had assembled in
Mamallapuram for a festival for the youth form the
Vanniyar caste. Other vandalism occurred that day and the following days, including setting fire to private and government buses, vehicles, ration stores and liquor outlets, wrecking culverts, and chopping down trees. They attacked
Muslim homes in the adjoining village of
Koonimedu. Houses and offices of governing
All India Anna Dravida Munnetra Kazhagam (AIADMK)
Members of the Parliament were also attacked by PMK members. Two PMK cadres, Selvaraj and Vivek were killed. == Arrests ==