By Road: Delhi is well connected to other parts of India by five National Highways: NH 1, 2, 8, 10 and 24. The Delhi-Gurgaon Expressway connects Delhi with Gurgaon and the international airport. The DND Flyway and Noida-Greater Noida Expressway connect Delhi with two prosperous suburbs of Noida and Greater Noida.
By Train: Delhi is a major junction in the rail map of India and is the headquarters of the Northern Railway. The five main railway stations are New Delhi Railway Station, Old Delhi, Nizamuddin Railway Station, Anand Vihar Railway Terminal and Sarai Rohilla. In addition to the Delhi Metro, a suburban railway, the Delhi Suburban Railway exists. The Delhi Metro, a mass rapid transit system built and operated by Delhi Metro Rail Corporation (DMRC), serves many parts of Delhi as well as the satellite city of Gurgaon in the neighbouring Haryana, Noida, and Ghaziabad in neighbouring Uttar Pradesh.�
By Air: Indira Gandhi International Airport (DEL) is situated in the western corner of Delhi and serves as the main gateway for the city's domestic and international civilian air traffic. In 2006-07, the airport recorded a traffic of more than 23 million passengers,making it one of the busiest airports in South Asia. A new US$1.93 billion Terminal 3 handles an additional 34 million passengers annually in 2010.
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