The Chennai International Airport is a major hub for:

Domestic air travel
International air travel
Cargo movement
All of the above

The correct answer is: d) All of the above.

Chennai International Airport (IATA: MAA, ICAO: VOM) is an international airport serving Chennai, the capital of the Indian state of Tamil Nadu. It is the fourth busiest airport in India by passenger traffic and the third busiest airport by cargo traffic. The airport is located 21 kilometers (13 mi) from the city center and is operated by Airports Authority of India.

The airport has two terminals, Terminal 1 and Terminal 2. Terminal 1 is used for domestic flights and Terminal 2 is used for international flights. The airport also has a cargo terminal, which is one of the largest in India.

Chennai International Airport is a major hub for domestic and international air travel. It is also a major hub for cargo movement. The airport is connected to major cities in India and to several cities in the world.

The airport has a number of facilities, including a shopping mall, a food court, a hotel, and a number of lounges. The airport also has a number of car rental companies and taxi services.

Chennai International Airport is a major economic hub for the city of Chennai and the state of Tamil Nadu. The airport provides employment to a large number of people and contributes significantly to the economy of the region.