Environment Rs 3 lakh savings per year, and borewells that never dry: What a Bengaluru apartment gained from RWH September 23, 2019 Samir Kumar Rakshit In water-starved Chikkabellandur, a small apartment community uses rainwater harvesting (RWH) to meet much of their needs. They use some of the rainwater directly, and the rest to recharge their borewells