It has a small portion extending into the Pudukottai District in Tamil Nadu; Karaikudi is the major town of this area and is considered the urban centre for the Chettinadu villages.
[3] In the 19th and early 20th centuries, many residents of Chettinad were trading in South and Southeast Asia, particularly Burma, Ceylon, Vietnam and Malaysia.
The Chettinad region is well known for its 19th-century mansions, whose wide courtyards and spacious rooms are embellished with marble and teak.
The marble was brought from Italy, chandeliers and teak from Burma, crockery from Indonesia, crystals from Europe and wall-to-wall mirrors from Belgium.
[8] According to locals the mansion walls were polished with a paste made out of egg whites and palm sugar to give them a smooth texture and for their cooling qualities.
[citation needed] Originally built by early Tamil dynasties like the Cholas, the temples of Chettinad stand testimony to the spiritual beliefs of local people.
Temples are built according to Vaastu Shastras and Agamas as the Chettinad wealthy sponsored the buildings and the shilpis after the royal families declined.
On a side note, traditional houses were also built according to ancient text in an architectural style called Vaastu Shastras.
Athangudi tiles, named after the place of the manufacture in Chettinad, come in a myriad of colours and patterns, and are made by a unique process using local soil and glass plates.
[12] These tiles are a testament to the rich cultural heritage of the Chettiar community, who effectively adapted many influences to their own brand of local craftsmanship.