Airports Authority of India

The Airports Authority of India (AAI), under the Ministry of Civil Aviation, is responsible for creating, upgrading, maintaining, and managing civil aviation infrastructure across India. AAI also provides Air Traffic Management (ATM) services over Indian airspace and adjoining oceanic regions to ensure the safe and efficient movement of aircraft.

Airport Management & Infrastructure

AAI manages a total of 137 airports, including:

• 34 International Airports
• 10 Customs Airports
• 81 Domestic Airports
• 12 Civil Enclaves at Military Airfields

Additionally, AAI has ground installations at all operational airports and 25 remote locations to ensure aircraft safety.

AAI plays a key role in maintaining air navigation services, covering major air routes across Indian airspace through:

• 29 Radar installations at 11 locations
• 700 VOR/DVOR installations co-located with Distance Measuring Equipment (DME)
• 52 runways equipped with Instrument Landing System (ILS) and night landing facilities
• Automatic Message Switching System (AMSS) at 15 airports

Air Navigation & Surveillance Systems

AAI has been a pioneer in adopting cutting-edge technology for air traffic management:

• Automatic Dependence Surveillance System (ADSS): Implemented at Kolkata and Chennai Air Traffic Control Centres, making India the first country in Southeast Asia to use this satellite-based technology for oceanic air traffic ...