DISTRICT is a district of state in South . The city of Theni is the district headquarters. The district is divided into two natural divisions: The hilly areas are constituted by parts of the three taluks , and with thick vegetation and perennial streams from the hills on the western side and which lies in .As of 2011, Theni district had a population of 1,245,899 with a sex-ratio of 991 females for every 1,000 males. GEOGRAPHY The 2,889 km2 (1,115 sq mi) district lies at the foot of the between 9' 39' and 10' 30' North latitude and between 77' 00' and 78' 30' of East Longitude. Central location: 10°04′N 77°45′E. The district is bounded by to the north, District to the east, District to the southwest, and of the State to the west. Google Map of Theni District

istrict Map of Theni

ADMINISTRATIVE DETAILS Theni district is having an administratiave division of 3 taluks, 8 blocks and 94 villages as detailed below:

BASIN AND SUB-BASIN The district is part of composite cape comerin to Cauvery basin and a part of vaigai sub basin. DRAINAGE has its origin in the eastern slope of Western Ghat at Gandamanayakanur. Suruliar, Theniar, Varahanadhi and Manjalar are its main tributaries.The regional drainage pattern is dentritic and major direction of the flow of river is esterly (east, southeast and northeast) from this Western Ghat hills. IRRIGATION PRACTICES The nine-fold lands use classification for the district is given below.(2005-06)

CLIMATE The district receives rainfall under the influence of both southwest and northeast monsoon. In the plains, the temperatures range from a minimum of 13 °C to a maximum of 39.5 °C. In the hills the temperatures can range from as low as 4-5 °C to 25 °C. The district is known for its salubrious climate, hills and lakes.

GEOMORPHOLOGY District is characterised predominantly by structural and denudational land forms viz., structural hills, residual hills, linear ridges and pediment. Bazada zone is found well developed at the foot hills on the western and northern part of the district. The valleys are characterised by colluvio-fluvial sediments. The hilly terrain act as catchment area and runoff zones while the bazada zone bordering the hills form a good recharge zones SOILS The district is characterised by Red, Black and Brown soils. The major part of the area is characterised by red soil, which can be either transported or lateritic (insitu). These are medium to heavy textured soils with moderate to higher permeability. The black soils are limited to less than 1% of the area.They are fine textured with low permeability. The brown soils are limited to less than 1% of the area and they characterised by low permeability.