Karaikudi is a municipal town located in Sivagangai district of the state of Tamil Nadu. The place is the most famous in the entire municipality because it is also the largest town in the district. It is part of the Chettinad region that includes a total of 75 villages. The town is on the highway that connects Trichy and Rameshwaram.The houses in this town are constructed using the limestone that is called ‘karai veedu’ in local language. Some people also believe that the town got its name from the plant of ‘Karai’ which is found in abundance in the place.