 Netaji Subhas Chandra Bose International Airport, located in Dum Dum some 16 km (9.9 mi) north-east of the city centre, operates domestic and international flights. In 2013, the airport was upgraded to handle increased air traffic. The Port of Kolkata, established in 1870, is India's oldest and the only major river port. The Kolkata Port Trust manages docks in Kolkata and Haldia. The port hosts passenger services to Port Blair, capital of the Andaman and Nicobar Islands; freighter service to ports throughout India and around the world is operated by the Shipping Corporation of India. Ferry services connect Kolkata with its twin city of Howrah, located across the Hooghly River.
