Allegiance water Management Most of the world water problems such as flooding, drought, water shortage, water pollution, heat island are all related to rainwater. By proper rainwater management, we can reduce the risk of such problems and enhance the resilience. To solve the SDG for drinking water by rainwater harvesting, innovations in technical, economic and social aspects are necessary. Due to climate change and urbanization, water shortage problems are increasing throughout the world in both developing and developed countries. Community based rainwater harvesting can be a good option to solve local problems. Rainwater management is used to mitigate extreme rainfall events without increasing the capacity of existing sewer system, and to mitigate urban heat island problems. for more details www.allegianceindia.in