Hyderabad Airport upgrades Runway 09R to CAT III lighting, strengthening low-visibility operations and helping reduce flight delays and diversions during winter fog. HYDERABAD: GMR Hyderabad International Airport Limited (GHIAL) has commissioned Category III (CAT III) Airfield Ground Lighting (AGL) on Runway 09R at Rajiv Gandhi International Airport (RGIA). The upgrade will help the airport handle aircraft operations in extremely low visibility.