It provides Communication Navigation Surveillance/Air Traffic Management (CNS/ATM) services over the Indian airspace and adjoining oceanic areas.

[6] This new organization was to be responsible for creating, upgrading, maintaining and managing civil aviation infrastructure both on the ground and air space in the country.

AAI's implementation of the Automatic Dependence Surveillance System (ADSS) at Kolkata and Chennai Air Traffic Control Centers, made India the first country to use this technology in the Southeast Asian region thus enabling Air Traffic Control over oceanic areas using satellite mode of communication.

Performance Based Navigation (PBN) procedures have already been implemented at Mumbai, Delhi and Ahmedabad Airports.

AAI is implementing the GAGAN project in technological collaboration with the Indian Space Research Organization (ISRO).

Eastern regional headquarters located in Kolkata, West Bengal, coordinates and controls the entire activities of all the airports and aeronautical communication stations listed below.

[citation needed] The ANS infrastructure and data/voice connectivity (i.e. Communication, Navigation, Surveillance, and Automation) to manage this coverage is provided and maintained by CNS, Kolkata.

The Aviation Safety Directorate in the region takes care of many responsibilities which are essential for the functionality of the Airports.

Coordinate with DGCA for safety assessment on the planning, construction& commissioning of changes to airport infrastructure, and maintenance programs.

Finalizing training programs for staff and officers of the Operations Department in coordination with the Indian Aviation Academy (IAA).

For any association Engineering Department is the spine that plane and executes different common and electrical attempts to give the infrastructural offices required.

Here in the eastern Region Engineering Department does likewise for ATC/NAV-AIDS according to the necessity alongside legitimate checking and control of development and upkeep of runways/Taxiways/Apron and different structures and workplaces according to the prerequisite.

The Rescue and Fire Services is responsible for managing the Airport Emergency Plan and deal the situation accordingly at the aircraft accident or incident as well as the safety of the occupants and avoidance of the fire risks in the terminal building & other vital installations at the airport.

The Corporate Communication (CC) Department deals with the allocation of Media for AAl's Advertisements through the empaneled Agencies while maintaining the implementation of Raj Bhasha Guidelines applicable in this regard.

To cope with the periods of very low visibility due to fog, special ILS CAT III (B) equipment is installed at NSCBI Airport, Kolkata.

For this purpose, close liaison is maintained with agencies like INMCC, THE INDIAN AIR FORCE, and the adjacent Search and Rescue coordination centers.

The distress signals picked by SARSAT and COSPAS are linked to the Indian Space Research Organization (ISRO).

Aeronautical Information Services The department deals with providing various facilities for passengers such as Retail, F&B, Duty-Free, Money Exchange, Car Rental, Vehicle Parking, etc.