Koothanallur is a town in Tiruvarur district in the South Indian state of Tamil Nadu. The town is located at a distance of 20 km from the district headquarters Tiruvarur and 350 km from the state capi

Thiruvarur district is one of the 38 districts in the Tamil Nadu state of India. As of 2011, the district had a population of 1,264,277 with a sex-ratio of 1,017 females for every 1,000 males.