Thambiluvil is a coastal village situated in the Eastern Province of Sri Lanka. It is 78 kilometres (48 mi) south of Batticaloa, on the east coast of the island. Thambiluvil is known for its preservation of the Tamil culture, especially the traditions of the ancient Mattakkalappu Desam. It is also known for Periya Kalappu, an area that has a lagoon and rice paddys.

Thirukkovil Temple is the most significant Hindu temple in Thirukkovil, Ampara District of Eastern Province, Sri Lanka. It is dedicated to Chitravelayudhar who was once the guardian deity of Mattakkalappu Desam and this temple enjoyed the honor of Desathukkovil of the Batticaloa region. Archaeological and historical evidences suggest that Cholan, Kotte and Kandyan kings maintained strong relations with this temple in the past.