Indira Gandhi International Airport (IATA: DEL, ICAO: VIDP) is an airport located in southwest Delhi, India. Named after former Prime Minister of India, Indira Gandhi, it is the busiest airport in South Asia handling the most traffic movements and passengers on the subcontinent. The airport serves as the primary civilian aviation hub for the National Capital Region of India. The airport was previously operated by the Indian Air Force and was a part of the Palam Airport until its management was transferred to the Airport Authority of India. In May 2006, the management of the airport was passed over to a joint venture, known as Delhi International Airport Limited (DIAL) and led by the GMR Group, which also has the responsibility for the airport's ongoing expansion and modernisation. In 2007, the airport handled 23 million passengers annually and the planned expansion program will increase its capacity to handle 100 million passengers by 2030.