Idukki is located in the Idukki district of Kerala in the Western Ghats with the highest density of population. This lovely district of Kerala is thought for its mountainous and dense forests. regarding sixty-six of the state's energy necessities return from hydropower comes in Idukki. The Devikulam, Udumbanchola and Peerumade Talukas are inscribed from the recent Kottayam District and also the Thodupuzha Taluk (excluding the Kaloorkkadu Village). This district consists currently 5 taluks. The dolmens and menhirs found from these places show the cultural and well-developed civilization of the inhabitants of the monument amount. The dolmens and menhirs found from these places show the cultural and well-developed civilization of the inhabitants of the monument amount. Thekkumkoor was the foremost powerful country of the time, and sometimes that they had quarrels between cochin china and Vadakkur. Immediately when the conquest of Thekkumkur and Vadakkumkoor, Poonjar domain was incorporated into Travancore in 1749-50, and its history is connected with Travancore. though not a revenue unit, geographical region Hill was thought-about a separate division for magisterial, general, coming up with and census functions. Adverse weather, wildlife, and epidemics have a history of formation. Narayana Pillai could be a continuation of the growing food campaign within the state. The delighted prince gave his title to the immense forest lands sold-out to the landowners of Tamil Nadu, and with the assistance of low-cost labor turned them into cardamom or tea estate. .