For Dr Vinayak Salunke, flashlights worth less than $10 each are one of the most valuable assets at the Vihamandra health centre in Aurangabad in India's western state of Maharashtra. With the clinic serving a population of 48,000, Salunke must prepare for up to six hours of power cuts daily, rather like a surgeon scrubbing up for surgery. "We don't have power back-up, so the torch batteries are vital. We check them every day," he said. "We also monitor the temperature of our refrigerator constantly to make sure vaccines and drugs are safe. It's become a way of life now."

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