Chhatrapati Shivaji International Airport (CSIA) is all set for a facelift. MIAL has got environmental clearance for the expansion project estimated to cost Rs 3,500-crore along with the permission to relocate the iconic air traffic control tower to Kalina as a long-term security strategy. The expansion project aims to accommodate 50 million passengers by 2020. The expansion of the airport would require around 20 acre land. Six acre would be used for building a taxiway from the parking apron of Terminal T2 to the main runway and 9.04 acre for another taxiway expansion to enhance airside safety and efficiency. The remaining 4.9 acre will be required for facilities like radar, aircraft parking, aerobridge, etc.