This study shows a comprehensive assessment of long-term trends in heatwave-related death rates in India, spanning five decades from 1973 to 2022. It is a component of a larger inquiry of how mortality is affected by extreme weather events (EWEs), with a particular focus on floods, tropical cyclones, and heat waves. With the use of rigorous statistical methods, the analysis covers both the federal and state levels and takes into account a range of timescales, including yearly, decadal, and twenty-year slices. Floods appeared as the main reason of mortality, contributing 46.1%, then tropical cyclones at 28.6%.but the death rate for all EWEs reduced from 3.86 in 1980-1999 to 2.14 in 2000-2019, tropical cyclone-related mortality decreased by 94% over the same period, but heatwave and lightning mortality increased by 62.2% and 52.8%, respectively. Notably, the considerable year-to-year fluctuation renders these changes statistically insignificant.The report also emphasizes the growing worry over heatwave-related mortality in India. It uses secondary data obtained from the data.gov.in portal of the Indian government to demonstrate the worrisome spike in heatrelated deaths, which have surpassed those brought on by several other natural disasters. These results highlight the urgent need for disaster preparedness and specific policies to protect vulnerable people from the increased threat of heatwaves in the context of a changing climate.