HISTORY of IDUKKI Detailed history of Idukki District Formation IDUKKI District was formed on 26 January 1972 as per Government notification No 54131/C2/71/RD dated 24th January 1972. High range Idukki district, especially the hilly areas of Idukki is popularly known as highrange. Migration The District is characterized by large migration of people from Kerala's main land as also labourers from neighbouring state of Tamil Nadu. Plantations The modern history of the district starts with the advent of European planters to this region. Want to visit ? Want to visit Idukki? Please go through the things to do in Idukki. Know more Know more about Dams, plantations and water falls located in Idukki.