India achieved a major civil aviation milestone by successfully conducting its first GAGAN-based landing of a jet aircraft, enhancing satellite navigation and flight safety.

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• India conducted its first GAGAN-based satellite landing approach for a jet aircraft on 27 June 2026 at Udaipur Airport using an IndiGo Airbus A320.
• GAGAN, or GPS Aided GEO Augmented Navigation, is India’s Satellite-Based Augmentation System jointly developed by ISRO and the Airports Authority of India.
• The system improves GPS accuracy using geostationary satellites and ground reference stations, providing highly precise navigation support for civil aviation operations.
• GAGAN enables Localiser Performance with Vertical Guidance approaches, offering accurate horizontal and vertical guidance at airports lacking Instrument Landing Systems.
• The Directorate General of Civil Aviation mandated GAGAN equipment for all aircraft registered in India after 1 July 2021 to improve aviation safety.
• India became the first country in the Asia-Pacific region to operationalise a Satellite-Based Augmentation System for civil aviation navigation services.
• Besides aviation, GAGAN also supports railway operations, maritime navigation, surveying, disaster management, security applications, and advanced Air Traffic Management services.