what is the appropriate category for this airport?
the indira gandhi international airport has three runways: runway 11/29, 4,430 m × 60 m (14,530 ft × 200 ft) with cat iiib instrument landing system (ils), runway 10/28, 3,810 m × 46 m (12,500 ft × 151 ft), and runway 09/27, 2,813 m × 45 m (9,229 ft × 148 ft).