In Bokaro Steel City, set on the Chota Nagpur Plateau in a coal-rich district of Jharkhand, 55-year-old Jethu Mahto’s work day begins at six in the morning and finishes at two in the afternoon. Mahto has been working in the Bermo Coal Mines for 35 years and continues, even under a punishing sun, amidst a devastating heatwave in one of the hottest areas of India.