Although Sri Lankan Tamils are culturally and linguistically distinct, genetic studies indicate that they are closely related to Sinhalese ethnic group in the island.The Sri Lankan Tamils are mostly Hindus with a significant Christian population.Bearing a remarkable resemblance to burials in the Early Pandyan Kingdom, these sites were established between the 5th century BCE and 2nd century CE.
The indigenous Veddhas are ethnically related to people in South India and early populations of Southeast Asia.
One theory states that there was not an organised Sri Lankan Tamil people presence in Sri Lanka until the creation of a Tamil Kingdom in the 7th century CE, followed by much earlier invasions from Tamilakam.
Megalithic burial urns or jar found in Pomparippu, North Western, Sri Lanka dated to at least five to two centuries BCE.
Potsherds with early Tamil writing from the 2nd century BCE have been found from the north in Poonagari, Kilinochchi District to the south in Tissamaharama.
They bore several inscriptions, including a clan name—vela, a name related to velir from ancient Tamil country.