Colombo ( kə-LUM-boh; Sinhala: කොළඹ, romanized: Koḷam̆ba, IPA: [ˈkoləᵐbə]; Tamil: கொழும்பு, romanized: Koḻumpu, IPA: [koɻumbɯ]) is the executive and judicial capital and largest city of Sri Lanka by population. The Colombo metropolitan area is estimated to have a population of 5.6 million, and 752,993 within the municipal limits. It is the financial centre of the island and a tourist destination. It is located on the west coast of the island and adjacent to the Greater Colombo area which includes Sri Jayawardenepura Kotte, the legislative capital of Sri Lanka, and Dehiwala-Mount Lavinia.
https://en.wikipedia.org/wiki/Colombo