Airports Authority of India (AAI)
Under the aegis of the Ministry of Civil Aviation functions a statutory body responsible for building , enhancing , servicing and managing civil aviation infrastructure in India and is called the Airports Authority of India (AAI) . Air traffic management (ATM) services over airspace belonging to the Indian territory and neighbouring oceanic areas are provided by this statutory body.
The project GAGAN is being implemented by the AAI in collaboration with the Indian Space Research Organisation. Under this, the satellite based systems will be made use of for the purpose of navigation. To achieve the navigational requirement of the aircraft, navigation signals received from the Global Positioning System (GPS) would be augmented.