The chief Kerala ports under control of the Zamorins in the late 15th century were Panthalayini Kollam, and Calicut. The Zamorin of Calicut derived greater part of his revenues by taxing the spice trade through his ports. Smaller ports in the kingdom were Puthuppattanam (Kottakkal), Parappanangadi, Tanur (Tanore), Ponnani (Ponani), Chetuva (Chetwai) and Kodungallur (Cranganore).