The study highlights significant health risks for India's population, particularly in northern regions where ozone levels are highest. Vulnerable groups, including those with pre-existing respiratory and cardiovascular conditions, face heightened mortality risks. The findings also emphasize the broader environmental challenge posed by rising temperatures and air pollution, which could strain healthcare systems and reduce overall quality of life. As heatwaves become more frequent and intense, the compounded effects of heat and ozone pollution are likely to emerge as a major public health crisis.