The study focuses on using rooftop rainwater harvesting in North East India due to heavy rainfall and water scarcity. It highlights rainwater as crucial for life and explains how this method gathers and stores rainwater effectively. With ground water becoming unreliable, rainwater harvesting is crucial. Researchers found that implementing this method in sloped roof houses in the northeast can help solve water scarcity issues by storing rainwater for future use. By collecting and storing rainwater, households can reduce water shortage problems.