250px|thumb|right|The Heritage Palace, Chettinad
250px|thumb|right|The Heritage Palace, Chettinad
Chettinad (also known as Chettinadu) is a region in Tamil Nadu comprising 56 villages in Sivaganga district and 20 villages in Pudukottai district, which was historically ruled by the Ramnad kingdom of Pandya Nadu. It has a small portion extending into the Pudukottai District in Tamil Nadu; Karaikudi is the major city of this area and is considered the urban centre for the Chettinadu villages.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).