Social media played a major role in coordinating relief efforts during the 2015 Tamil Nadu floods. Twitter was the dominant platform for discussion, with over 500,000 tweets. Hashtags like #ChennaiMicro and #ChennaiRescue helped volunteers direct food, shelter, and rescue efforts. Celebrities like actor Siddharth also helped organize aid. The floods drew discussion from around the world, though most conversations came from India. Social media monitoring can provide strategic insights into such disaster response and recovery efforts.