A Professor specializing in water crisis and risk reduction, with a Ph.D. from a world-leading university. His research focuses on water risks to public health, sustainable development, and climate resilience, particularly in South Asia and Sub-Saharan Africa. An author of over 70 peer-reviewed articles, including in 'Science' and 'Nature', he is a recognized expert who contributes to major global assessments like the IPCC reports and holds key advisory roles in international health and water alliances.