The Government of India has said that GAGAN (GPS Aided GEO Augmented Navigation), India’s indigenous satellite-based augmentation system developed by ISRO and the Airports Authority of India, will strengthen the country’s satellite navigation ecosystem by improving aviation safety, air traffic management, and satellite-based navigation services. GAGAN recently achieved a milestone with India’s first satellite-based landing approach on a commercial aircraft using the system.
Key Highlights
- GAGAN will strengthen India’s satellite navigation ecosystem and improve aviation safety.
- DGCA successfully conducted India’s first satellite-based landing approach using GAGAN in June 2026.
- Developed by ISRO and AAI, GAGAN enhances GPS accuracy and supports safer aircraft navigation.
- Together with NavIC, GAGAN will reduce India’s dependence on foreign navigation systems.
New Delhi, July 01: India’s GPS Aided GEO Augmented Navigation (GAGAN) is emerging as a key pillar of the country’s satellite navigation ecosystem, with the government highlighting its growing role in aviation safety, air traffic management, and indigenous navigation technologies.
According to an official statement released on Wednesday, GAGAN will significantly strengthen satellite-based navigation services across India while supporting safer aircraft operations and improving the efficiency of air traffic management.
A major milestone was achieved in June 2026, when the Directorate General of Civil Aviation (DGCA) successfully conducted India’s first satellite-based landing system approach on a commercial jet aircraft using GAGAN. The achievement marks a significant advancement in India’s aviation navigation capabilities and demonstrates the operational readiness of the indigenous system.
The government said that GAGAN, together with NavIC (Navigation with Indian Constellation), will play a crucial role in advancing India’s indigenous navigation technologies, reducing dependence on foreign satellite navigation systems, and strengthening the country’s strategic technological capabilities.
Beyond aviation, GAGAN is expected to support a wide range of applications, including transportation, disaster management, surveying, logistics, mapping, and infrastructure development, making it an essential component of India’s rapidly expanding digital and space ecosystem.
Developed jointly by the Indian Space Research Organisation (ISRO) and the Airports Authority of India (AAI), GAGAN is India’s indigenous Satellite-Based Augmentation System (SBAS) that enhances the accuracy, integrity, and reliability of Global Positioning System (GPS) signals for aircraft navigation.
The system continuously monitors GPS signals through an integrated network of ground reference stations, communication links, and geostationary satellites, calculates signal corrections in real time, and broadcasts highly accurate navigation information to aircraft. This significantly improves positioning accuracy and enhances flight safety, particularly during precision approach and landing operations.
According to the government, aviation requires extremely precise navigation, where even minor positioning errors can affect flight safety. Although GPS provides aircraft positioning information, atmospheric disturbances and signal errors can reduce its accuracy. GAGAN addresses these limitations by providing real-time corrections and integrity information, enabling safer and more reliable flight operations.
Certified to international aviation standards, GAGAN supports satellite-based landing procedures while also serving sectors beyond aviation. By enhancing India’s indigenous navigation infrastructure, the system reinforces the country’s vision of Atmanirbhar Bharat, technological self-reliance, and global leadership in satellite navigation.
Operational since 2015, GAGAN has placed India among a select group of nations—including the United States, Europe, and Japan—that operate a certified Satellite-Based Augmentation System (SBAS), highlighting India’s growing capabilities in advanced space and navigation technologies.
Conclusion
The continued advancement of GAGAN marks a major step in strengthening India’s satellite navigation ecosystem. Combined with NavIC, the indigenous navigation platform is enhancing aviation safety, improving GPS accuracy, expanding applications across multiple sectors, and reducing reliance on foreign navigation systems. As India’s aviation and space sectors continue to grow, GAGAN is expected to play an increasingly important role in building a connected, technology-driven, and self-reliant nation.
