Visakhapatnam (also known as Vizag) is a port city on the southeast coast of India. With a population of 1,730,520, it is the second-largest city in the state of Andhra Pradesh (after Hyderabad) and the third-largest city on the east coast (after Chennai and Kolkata). Visakhapatnam is located 625 kilometres (388 mi) east of the state capital, Hyderabad. The city is home to several state-owned heavy industries and a steel plant; it is one of India's largest seaports and has the country's oldest shipyard. Visakhapatnam has the only natural harbour on the east coast of India.