A recent study estimates that extreme heatwaves cause approximately 3,400 excess deaths daily and nearly 30,000 during a five-day heatwave in India, significantly higher than official figures. These heatwaves are becoming more frequent and intense due to climate change, with states like Uttar Pradesh bearing the biggest impact and revealing deep inequalities in vulnerability. The research highlights the urgent need for better protections, improved healthcare infrastructure, and robust early-warning systems in India, with implications for other vulnerable regions and even Europe.