The idea behind the formation of Cochin Municipal Corporation was first shaped in the Mattancherry Municipal Council. The Council passed a resolution requesting the Government to form Cochin Municipal Corporation amalgamating the Municipalities of Ernakulam, Mattancherry and Fort Cochin on 9 July 1960. However then the Fort Cochin Municipal Council strongly opposed to the proposal and declared that Fort Cochin was against any such formation. However Kerala State Assembly approved the proposal of Cochin Municipal Corporation. Govt. of Kerala as per their order G.O. (MS) 276/67/DD dt. 27/9/67 notified the formation of the Cochin Municipal Corporation by amalgamating the three ancient Municipalities of the state, viz. Ernakulam, Mattancherry and Fort Cochin and the Willingdon Island and four Panchayats viz. Palluruthy, Vennala, Vyttila and Edappally and the small islands of Gundu Dweepu, Ramanthuruth having an area of 83.524 km2. The new born Corporation came into existence on 1 November 1967.