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Image #: 18800045    A customer holds a candle as he gets his haircut at a barber's shop during a power-cut in Kolkata July 31, 2012. Grids supplying electricity to half of India's 1.2 billion people collapsed on Tuesday, trapping coal miners, stranding train travellers and plunging hospitals into darkness in the second major blackout in as many days. REUTERS/Rupak De Chowdhuri (INDIA - Tags: ENERGY SOCIETY TPX IMAGES OF THE DAY)       REUTERS /RUPAK DE CHOWDHURI /LANDOV
Image #: 18800045    A customer holds a candle as he gets his haircut at a barber's shop during a power-cut in Kolkata July 31, 2012. Grids supplying electricity to half of India's 1.2 billion people collapsed on Tuesday, trapping coal miners, stranding train travellers and plunging hospitals into darkness in the second major blackout in as many days. REUTERS/Rupak De Chowdhuri (INDIA - Tags: ENERGY SOCIETY TPX IMAGES OF THE DAY)       REUTERS /RUPAK DE CHOWDHURI /LANDOV

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    India blackout cause for new power grid

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India blackout cause for new power grid

Richard Quest talks to a CNN producer about India's blackout and asks if it's simply a matter of updating the power grid.

India blackout cause for new power grid

Richard Quest talks to a CNN producer about India's blackout and asks if it's simply a matter of updating the power grid.