InterGlobe Aviation Ltd., doing business as IndiGo, is an Indian low-cost airline headquartered in Gurgaon, Haryana, India. It is the largest airline in India by passengers carried and fleet size, with a 53.5% domestic market share as of October 2021. It is also the largest individual Asian low-cost carrier in terms of jet fleet size and passengers carried, and the fourth largest carrier in Asia with over 6.4 crore (64 million) passengers carried in financial year 2018–19. The airline operated 1,500 daily flights as of 2019 to 96 destinations – 71 domestic and 25 international. It has its primary hub at Indira Gandhi International Airport, Delhi.