About Kodungallur
Kodungallur (also English: Cranganore /; Portuguese: Cranganor /; Tamil: Muchiri, formerly known as Mahodayapuram, Muyirikkode, and Muziris) is a municipality on the banks of river Periyar on the Malabar Coast in Thrissur district of Kerala, India. It is situated 29 kilometres (18 mi) north of Kochi (Cochin) by National Highway 66. Kodungallur, being a port city at the northern end of the Kerala lagoons, was a strategic entry point for the naval fleets to the extensive Kerala backwaters.
Scholars believe that Muziris, an ancient harbour located on the mouth of Periyar, coincides with modern-day Kodungallur. Central Kerala and western Tamil Nadu in early historic south India was ruled by the Chera line of rulers.
Source : Wikipedia