Archive · 6 Nov 2025
DGCA Probes GPS Spoofing Over Delhi Amid Aviation Safety Fears
Imagine airplanes use a special invisible signal called GPS to know exactly where they are, like a super-accurate map.
Recently, over Delhi, this GPS signal has been acting strangely because someone is sending fake signals.
This makes the pilots think the plane is in a different place than it actually is, and it can also show them fake warnings about mountains.
This is very worrying because it could make flying unsafe.
This is happening while the main runway at Delhi's airport is being upgraded, making planes even more reliant on GPS.
Because of this fake signal problem, several planes had to land in a different city recently.
Experts are comparing this 'spoofing' to 'jamming,' which just blocks the signal.
This fake signal issue is also happening in other parts of the world.
The aviation authority in India is collecting information to figure out what's going on and if they need to ask security people for help.
DGCA is investigating severe GPS spoofing incidents affecting aircraft over Delhi.
Spoofing provides pilots with false navigation data, including incorrect positions and misleading terrain alerts.
Incidents disrupt Required Navigation Performance (RNP) systems, increasing reliance on GPS as the main runway's ILS is upgraded.
Multiple flight diversions have occurred, including seven aircraft diverted to Jaipur on Tuesday night.
Concerns raised about aviation safety, national security, and the integrity of navigation systems due to deliberate GPS signal manipulation.
- Who
- Directorate General of Civil Aviation (DGCA) and affected airlines (IndiGo, Air India)
- What
- Investigating 'severe' GPS spoofing incidents affecting aircraft navigation and safety.
- When
- Over the past week, with significant incidents noted on Tuesday night.
- Where
- Over Delhi, impacting aircraft within approximately 60 nautical miles of Indira Gandhi International Airport (IGIA).
- Why
- Pilots are receiving false navigation data due to manipulated GPS signals, raising aviation safety and national security concerns.
Nature of GPS Interference
Consequences and Concerns
Spoofing vs. Jamming
Nature of GPS Interference
GPS spoofing involves feeding aircraft false location data by manipulating signals, whereas jamming completely blocks signals.
Consequences and Concerns
Spoofing is raising serious operational and security concerns, potentially compromising aviation safety and national security, especially given the proximity to strategic installations.
Impact on Navigation Systems
Nature of GPS Interference
Spoofing disrupts the accuracy of Required Navigation Performance (RNP) systems, which rely entirely on GPS signals.
Consequences and Concerns
This disruption leads to pilot confusion with false navigation data, incorrect aircraft positions, misleading terrain alerts, flight diversions, and potential congestion.
- Investigating Body
- Directorate General of Civil Aviation (DGCA)
- Nature of Incidents
- GPS spoofing, feeding false navigation data to aircraft.
- Affected Area
- Aircraft flying over Delhi, approximately 60 nautical miles from Indira Gandhi International Airport (IGIA).
- Impact on Operations
- Disruption of RNP accuracy, causing flight diversions and congestion.
- Recent Diversions
- Seven aircraft (five IndiGo, two Air India) diverted to Jaipur on Tuesday night.
- Context
- Occurring as IGIA withdraws ILS for main runway upgrade, increasing reliance on GPS-dependent RNP systems.
- Global Context
- Similar attacks reported in conflict zones like Ukraine, Turkey, and the Middle East.