Primary airport in Mumbai, India, and is South Asia's busiest airport in term of passenger traffic. The airport, with its five operating terminals, spreads over an operational area of 1,450 acres (5.9 km2), is India's and South Asia's largest and most important aviation hub, handling more than 25 million passengers and 533,593 tonnes of cargo. It along with Delhi's Indira Gandhi International Airport, handles more than half of the air traffic in South Asia. Formerly called Sahar (international) Airport and Santa Cruz (domestic) Airport, the two airports were merged and renamed after the 17th century Maratha Emperor, Chhatrapati Shivaji Bhosle, to Chhatrapati Shivaji International Airport. In February 2006, Mumbai International Airport Limited, a consortium of GVK Industries Ltd., Airports Company South Africa and Bidvest, was appointed to carry out the modernization of Mumbai Airport.