Interglobe Aviation Ltd.

InterGlobe Aviation (IndiGo) has become the first airline in the country to land aircraft using the indigenous navigation system GAGAN (GPS-aided geo-augmented navigation). GAGAN is used to provide lateral and vertical guidance when an aircraft is approaching a runway for landing. Its precision is especially useful at small airports where the instrument landing system (ILS) has not been installed.

InterGlobe Aviation provides air transportation services in India and internationally. The company primarily operates IndiGo passenger airline.