The report underscores the severe impact of heatwaves on vulnerable groups in India, particularly infants and older adults, who are at heightened risk of heat-related illnesses and fatalities. The health harms of climate change have been growing faster than global responses, with India experiencing significant exposure levels. The findings suggest that without urgent climate action, the health risks for these populations will continue to escalate, potentially leading to more heat-related deaths and strain on healthcare systems.