India, Sept. 10 -- A random inspection of rainwater harvesting (RWH) systems in four residential condominiums in Gurugram last week found all of them to be defective and non-functional, officials of the Gurugram Metropolitan Development Authority (GMDA) said.

The inspection was carried out by the GMDA planning wing along with teams from the district hydrology department, Ground Water Authority and state irrigation department. The exercise followed directions from DS Dhesi, principal advisor, urban development, Haryana, to ensure that RWH systems are made functional across the city.

According to a drainage report submitted by a GMDA consultant in late July, nearly 50% of condominiums have faulty RWH systems that need to be restored to cu...