IndiGo becomes first airline to land aircraft using indigenous navigation system GAGAN
The flight was conducted using an ATR-72 aircraft and landed at the Kishangarh airport in Rajasthan, using GPS-aided geo-augmented navigation (GAGAN), which has been jointly developed by the Centre-run Airports Authority of India (AAI) and the ISRO.
GAGAN is used to provide lateral and vertical guidance when an aircraft is approaching a runway for landing.