Location & Area
Theni is one of the south-western districts of TamilNadu  state. It is  bounded  on the north by Dindigul  district, on the  east  by Madurai  district, on the south by portions of Virudunagar district and  Idukki district of  Kerala state, and on the west by Idukki (Kerala).  The district administrative  headquarters of this district is location at Theni  Allingaram town. It has an area of 2889 Sq.Km. and a population of 10,49,300.

Geography & Physical Features
The district  can  be  divided  into  two  natural divisions. Hilly  areas constituted by parts of all the three taluks viz. Periyakulam,  Uttamapalaiyam and Andipatti with thick vegetation and perennial stream from the hills on the western side, and another one is Cumbum valley which lies  in  Uttamapalayam taluks.  The district lies at the foot for western ghat and is diversified by several  ranges  and hills. A range of hills which runs parallel  to  western ghats  from  north  to south separate the  district  from  neighbouring  state Kerala.