The headquarters of the Airport Authority of India is located in Delhi.

The Airport Authority of India (AAI) is a statutory body working under the Ministry of Civil Aviation, Government of India. It is responsible for the management and development of airports in the country. The AAI was founded on 1st April 1995 and has its headquarters in New Delhi.

Functions of the Airport Authority of India:
The AAI performs a wide range of functions to ensure the smooth functioning and development of airports in India. Some of its key functions include:

1. Airport Operations: The AAI manages and operates airports across the country, ensuring that they function efficiently and provide high-quality services to passengers and airlines.

2. Air Traffic Management: The AAI is responsible for air traffic control services, ensuring the safe and efficient movement of aircraft within Indian airspace.

3. Infrastructure Development: The AAI undertakes the development and modernization of airport infrastructure, including runways, terminals, navigational aids, and other facilities.

4. Air Navigation Services: The AAI provides various air navigation services, including communication, navigation, and surveillance systems, to ensure the safety and efficiency of air traffic.

5. Aviation Training: The AAI operates training institutes to provide training programs for various aviation-related disciplines, including air traffic control, airport management, and aviation safety.

Location of Headquarters:
The headquarters of the Airport Authority of India is located in New Delhi, the capital city of India. Delhi is a major transportation hub and is well-connected to other parts of the country and the world through air, rail, and road networks. The AAI headquarters in Delhi serves as the central administrative and decision-making center for the organization.

Conclusion:
In conclusion, the headquarters of the Airport Authority of India is located in Delhi. The AAI plays a crucial role in the management and development of airports in the country, ensuring the smooth functioning and safety of air travel.