---
title: "GAGAN: India's GPS Augmentation System | Model Diplomat"
description: "GAGAN is India's satellite-based augmentation system enhancing GPS accuracy for aviation, crucial for Model UN students and UPSC exam candidates."
url: "https://modeldiplomat.com/learn/glossary/gagan-augmentation-system"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- GAGAN is India's satellite-based augmentation system, jointly developed by ISRO and the Airports Authority of India to improve GPS accuracy and integrity over the Indian airspace.
- How does GAGAN differ from NavIC?
- Which agencies operate GAGAN and under what legal framework?
- What practical benefit does GAGAN provide to Indian aviation?
- Why was GAGAN technically significant among global SBAS systems?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In 2015, the Directorate General of Civil Aviation certified GAGAN for RNP-0.1 operations, making India's GPS augmentation system the first SBAS certified for civil aviation in the equatorial ionospheric region.

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