Visakhapatnam is the largest and most populous metropolitan city in the Indian state of Andhra Pradesh. It is between the Eastern Ghats and the coast of the Bay of Bengal. It is the second largest city on the east coast of India after Chennai, and the fourth largest in South India. It is one of the four smart cities of Andhra Pradesh selected under the Smart Cities Mission and is the headquarters of Visakhapatnam district. Vizag is popularly known as shipbuilding capital of India due to presence of multiple shipyards such as Hindustan Shipyard, Naval Dockyard and being the central naval command of the east coast.