A study examined the water budgets of three Indian cities—Bhopal, Bhuj, and Kozhikode—to assess their runoff harvesting potential. Bhopal, with its high rainfall, generates significant runoff but struggles with limited groundwater recharge. Bhuj faces water scarcity due to quick runoff peaks during the monsoon and a long dry season. Kozhikode, despite abundant rainfall, deals with flooding and relies heavily on external water sources. Each city presents unique challenges and opportunities for runoff harvesting.