The Chennai International Airport was formerly known as Madras International Airport, which is considered to be the primary airport in the South India’s biggest metro city of Chennai. Chennai airport is now the third busiest airports in the country in terms of air traffic as well as the number of passengers handled. The airport is a huge facility, which spreads across the regions of Pallavaram, Meenambakkam, and Tirusulam. The passenger entry area is at Tirusulam and the cargo terminal is at Meenambakkam. The domestic terminal is named after the former chief minister of Tamil Nadu, K. Kamaraj and the international terminal is named after another chief minister, C. N. Annadurai.
Chennai airport is the first of its kind facility in India, which is having domestic and international terminals adjacent to each other. The airport is also the southern regional headquarters of the Airports Authority of India, serving the states of Tamil Nadu, Kerala, Karnataka, Andhra Pradesh, and union territories Puducherry and Lakshadweep. As per the statistics in 2012, Chennai airport handles about 13.5 million passengers yearly and operates about 325 flights a day.
Chennai airport is spread over an area of about 1,283 acres and consist of three terminals. The oldest terminal is at Meenambakkam, which is now used for cargo and the new passenger terminal in Tirusulam consist of domestic and international terminals, which are connected with a link building. The domestic terminal has 48 check-in counters and can handle 4.74 million passengers a year. The international terminal has 45 check-in counters, 38 immigration counters, and 18 customs counters.