A worker walks atop a tanker wagon to check the freight level at an oil terminal on outskirts of Kolkata

A worker walks atop a tanker wagon to check the freight level at an oil terminal on the outskirts of Kolkata November 27, 2013.
CREDIT: REUTERS/RUPAK DE CHOWDHURI/FILES

A worker walks atop a tanker wagon to check the freight level at an oil terminal on the outskirts of Kolkata November 27, 2013. REUTERS/Rupak De Chowdhuri/Files

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