In the recent past, spells of extreme heat associated with appreciable mortality have been documented in developed countries, including North America and Europe. However, far fewer research reports are available from developing countries or specific cities in South Asia. In May 2010, Ahmedabad, India, faced a heat wave where the
temperatures reached a high of 46.8uC with an apparent increase in mortality. The purpose of this study is to characterize the heat wave impact and assess the associated excess mortality.