Water is the most essential offering of nature to us that we receive in the form of rains. Population explosion, global warming, climate change, rapid industrialization, construction activities, etc. have created the challenging problem of water shortage in front of whole nation. Over extraction of groundwater has further severed the problem by depleting the internal storage as well. To address this challenge, the only alternative is water conservation and the jest use of water. To enhance water conservation, most of the municipalities and urban local bodies have made it mandatory to implement a rainwater harvesting system with new residential constructions.