Ernakulam was formed on 1 April, 1958 with the Aluva, Kunnathunadu, Kochi, Kanayannur, Paravoor Taluks which was with Thrissur district. When Idukki district was formed on 26 January 1977, Thodupuzha taluk was joined with Idukki and Muvattupuzha taluk separated with to form Kothamangalam taluk.
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