Chettinad (also known as Chettinadu) is a region located mainly in the Sivaganga district historically ruled by Ramnad kingdom of Pandya Nadu and has a small portion extending into the Pudukottai District of Chola Nadu in Tamil Nadu. In the 19th and early 20th centuries, many residents of Chettinad were trading in South and Southeast Asia, particularly Burma, Ceylon, Vietnam and Malaysia. By 2010, only 74 villages remained of the original 96,organized in clusters spread over a territory of 1,550 square kilometres (600 square miles) in the Districts of Sivagangai and Pudukottai in the State of Tamil Nadu.