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In page New Delhi:

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Indira Gandhi International Airport, situated to the southwest of Delhi, is the main gateway for the city's domestic and international civilian air traffic. In 2012–13, the airport was used by more than 35 million passengers,[citation needed] making it one of the busiest airports in South Asia. Terminal 3, which cost 96.8 billion (US$1.1 billion) to construct between 2007 and 2010, handles an additional 37 million passengers annually.[1]