The Chettinad region of Tamil Nadu is famous for its:

Distinctive architecture and cuisine
Textile industry
Coffee plantations
Film industry

The Chettinad region of Tamil Nadu is famous for its distinctive architecture and cuisine. The Chettinad people are a Tamil-speaking community who originated in the Chettinad region of Tamil Nadu, India. They are known for their business acumen and their distinctive cuisine. Chettinad cuisine is known for its use of spices, its rich flavors, and its elaborate presentation. The Chettinad region is also known for its distinctive architecture. The Chettinad houses are built in a traditional style, with red brick walls and white plaster. They are often decorated with intricate carvings and sculptures. The Chettinad region is a popular tourist destination, and its cuisine and architecture are two of its main attractions.

The textile industry is not a major industry in the Chettinad region. The coffee plantations are located in the Western Ghats, not in the Chettinad region. The film industry is located in Chennai, not in the Chettinad region.