Chennai International Airport is an international airport serving the city of Chennai, the capital of Tamil Nadu, India. It is located in Tirusulam in Chengalpattu district, in the Greater Chennai Metropolitan Area around 21 km (13 mi) southwest of the city centre. The first air service was operated in 1915 and the airport was commissioned in 1930. The airport serves as the southern regional headquarters of the Airports Authority of India (AAI) for South India comprising the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu, Telangana, and the union territories of Lakshadweep, and Puducherry.