Air Traffic Controller coordinates the movement of aircraft to maintain the safe distances between the aircraft. Their primary concern is safety, but they also must direct aircraft efficiently to minimize delays. They manage the flow of aircraft into and out of the airport airspace, guide pilots during takeoff and landing, and monitor aircraft as they travel through the skies for security purposes. Air traffic controllers use radar, computers, or visual references to monitor and direct the movement of the aircraft in the skies and ground traffic at airports.

To discharge his duties efficiently and effectively he requires special training and knowledge in more than one area like air navigation, interpretation of meteorological reports, operations of sophisticated electronic and mechanical controls, leading the aircraft under adverse circumstances.

Airports Authority of India (AAI) conducts this training in their Civil Aviation Training Colleges. AAI is the sole employer of the civil ATCs, in India. The training is imparted only after recruitment. After successful completion of training & clearing of exam, candidate qualifies for relevant job with AAI.