Kochi (; Malayalam: []); formerly known as Cochin) is a city in the Indian state of Kerala. The city is one of the principal seaports of the country and is located in the district of Ernakulam, about 220 kilometres (140 mi) north of the state capital, Thiruvananthapuram. It has an estimated population of 600,000, with an extended metropolitan population of about 1.5 million, making it the largest urban agglomeration and the second largest city in Kerala after the capital.