2017 · Paper V · 10 marksFrequently asked

What is GPS ? Explain the recent efforts made by India to create its own GPS system.

In short

GPS is a satellite navigation system giving real-time location and timing worldwide, and denial of access during the Kargil War pushed India to build its own. Its answer is NavIC (IRNSS), seven ISRO satellites with 15 ground stations, giving better than 20 metre accuracy over India and 1,500 km beyond.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
GPS is a global satellite navigation system crucial for strategic and commercial sectors. India’s reliance on foreign GPS, especially during conflicts like Kargil, underscored the need for an indigenous system to ensure autonomy and uninterrupted service.
Institutional Framework and Indigenous Capacity
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ISRO and Ground Network

ISRO leads NAVIC’s design, launch, and operation, supported by 15 ground stations for satellite control and navigation management.

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GAGAN for Aviation

Collaboration between ISRO and Airport Authority of India enhances GPS accuracy over Indian airspace, improving civil aviation safety.

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Strategic Autonomy Focus

The Ministry of Defence and Department of Space prioritize reducing dependence on foreign systems like US GPS and Russian GLONASS for military use.

Implementation Challenges and Sectoral Outcomes
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Dual-Use Applications

It supports Andhra Pradesh’s coastal fisheries, disaster relief, and maritime safety, boosting regional economic activity.

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Interoperability Efforts

NAVIC receivers work alongside GPS and GLONASS, though seamless compatibility and interference remain challenges.

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Operationalization and Adoption

Full operational status is ongoing, with efforts to integrate NAVIC into commercial devices and government services, including Andhra Pradesh’s disaster frameworks.

Way Forward
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Expand Satellite Constellation

Launch more satellites and upgrade ground infrastructure for robust service.

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Promote Indigenous Manufacturing

Support local production under Make in India1 to reduce imports.

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Enhance Civil-Military Integration

Improve coordination for coastal security and disaster response in Andhra Pradesh.

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International Collaboration

Engage in interoperability agreements to improve accuracy and strategic partnerships.

Conclusion
NAVIC marks a major step toward India’s technological sovereignty, reducing foreign dependence and enhancing strategic capabilities, supporting Atmanirbhar Bharat and SDG 9 through innovation and infrastructure development.

This model answer is indicative and the model can make mistakes; please verify key facts independently.

Hand-drawn diagram: India's own navigation system. India's own navigation system. Diagram (tree): India's own navigation system; NavIC (IRNSS); Seven satellites, GEO and GSO; 15 ground stations; Standard service for civilians; Restricted service for military; GAGAN for aviation
Diagram: India's own navigation system

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This chapter in the exam

Indian Space Programme, ISRO, Satellites and DRDO23 questions

Asked in 8 of 8 sittings since 2008

2008
2
2011
2
2012
5
2016
4
2017
2
2020
3
2023
3
2025
2

Most tested: Remote sensing and satellite applications for agriculture, natural resources, and rural development.

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Question from the official APPSC Group-I Mains 2017 paper. Answer written by Ghissu's engine and checked against our editorial standards. Found an error? Tell us and we correct it within 48 hours.

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