This beautiful High range district of Kerala is geographically known for its Mountainous Hills and Dense Forests. For the people of Kerala, Idukki is always associated with Power Generation. About 66% of the State's Power needs come from the Hydroelectric Power Projects in Idukki. Idukki accounts for 12.9 percent of the area of Kerala and only 3.7 percent of the population of Kerala.

Idukki district was formed on 26 January 1972.The district consists of Devikulam, Udumbanchola and Peermedu taluks of the erstwhile Kottayam district and Thodupuzha taluk (excluding two villages Manjallore and Kalloorkadu) of the erstwhile Ernakulam district. At the time of formation the district headquarters started functioning at Kottayam and from there it was shifted to Painavu in Thodupuzha taluk in June 1976, where it is proposed to build a new planned forest township.