Economy Creating water-smart cities: Why we need to adopt the ‘4Rs’ to save water Updated : January 21, 2020 01:29 PM IST A city or a village can be termed a smart city only if it has the ability to meet the water needs for domestic and commercial use. In cities, water harvesting should be a part of all domestic and residential establishments. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.