Changanacherry was a famous trading place were traders from the Kuttanad area and high ranges converged. The measurements used for rice in old era were "Changazhi" "Nazhi" and "Uzhi". The name originated from a combination of these three measuring containers.
An interesting story mentions that during the reign of King Udaya Marthanda Varma of Travancore, steps were taken to build a Catholic church by giving out plots for sowing 'Changazhy', 'Nazhy' 'Uri', 'Payattupadu' (various malayalam terms of measuring grains). All these terms put together apparently made up the name of the place to Changanachery.
