A massive grid failure has left more than 600 million people in India without power, the second large-scale outage to hit the country in as many days.
Blackout Cuts Power to 600 Million in India

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Passengers sit in a train as they wait for electricity to be restored at a railway station in the northern Indian city of Allahabad, July 30, 2012.

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Commuters stand on a busy road outside a Metro station after Delhi Metro rail services were disrupted following power outage in New Delhi, India, July 31, 2012

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A general view of an electric power station on the outskirts of Jammu, July 31, 2012.

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Commuters walk on empty railway tracks at the New Delhi railway station following a power outage in New Delhi, India, Tuesday, July 31, 2012.