Theni is a town in the Western Tamil Nadu state of South India. It is the headquarters of Theni District. It is known for the large-scale trading of cardamom, grapes and chilli. It hosts the second largest weekly market in Tamil Nadu and the fourth largest in South India. It is well-connected by rail and road to Madurai and by road to all the important cities in Tamil Nadu. The nearest airport is at Madurai.

Geography

Theni district is surrounded by the Western Ghats. The main occupation of people of Theni is agriculture. The Vaigai River flows through this district. Other important rivers include the Mullaiperiyar, Suruliyaru, Varaganadi, Kottakkudiyaru, and Manjalaru rivers.

Tourist Spots

Suruliaruvi which is situated in Surulipatti of Theni district is a famous waterfall. Meghamalai, Vellimalai are hill stations with natural beauty and home for wild lives. Vaigai Dam and Shanmuganadhi Dam are the visitable water reservoirs of Theni District. Other tourist spots include Bodimettu, Kumbakkarai Falls, Veerapandi, Kumuli. Munnar, the famous hill station of South India is just 86 km away from Theni city.
The nearest railway junctions are Dindigul and Madurai which are 75 kilometers away from Theni.

Languages
• Official	Tamil
Time zone	IST (UTC+5:30)
Telephone code	04546
Vehicle registration	TN 60
Distance from Chennai	498 kilometres (309 mi) southwest
Climate	Average and moderate cool at winter (Köppen)
Precipitation	658 millimetres (25.9 in)
Avg. summer temperature	39.5 °C (103.1 °F)
Avg. winter temperature	25.8 °C (78.4 °F)