In this photo by Tsering Topgyal, a family sleeps on the roof of a house to beat the heat in New Delhi. Sleeping outside is common for people who live in neighborhoods with irregular electric supply or in buildings that are crowded or made of heat-trapping concrete. A baking heat wave this month has killed hundreds of people, mainly in southern India, but the rest of the country has not escaped the high temperatures. New Delhi's high on Friday exceeded 41 degrees Celsius (about 106 Fahrenheit) and were expected to be equal or higher through Monday.