India, Dec. 2 -- The Indira Gandhi International (IGI) airport has been awarded the "water positive" status by CII-Triveni Water Institute, meaning the establishment restores more water back to the environment than it is utilising. The Delhi International Airport Limited (DIAL) on Monday said that IGI is the first airport in the country with a capacity of over 40 million passengers per annum (MPPA) to achieve this benchmark.

DIAL said this has been achieved through multiple sources of groundwater recharge, such as 625 rainwater-harvesting structures which have been installed across the airport. Further, there are two newly commissioned underground reservoirs with a combined capacity of 9 million litres, officials said. "These enable sign...