'Look over there,' said Raju, pointing with his chin in the Indian manner to some indistinct letters and numbers painted on a building. 'Would you believe that the Ganges reached up to there in the monsoon of 1978?' We looked down to the river flowing serenely beside the stone steps of Varanasi’s ghats today, a dizzy, mind-boggling 74 metres (242 feet) below. Ahead and beneath us, left and right, as far as the eye could see, everything would have been covered in a fast-flowing, brown inland sea. The vast sandbanks stretching to the horizon, the ghats, the temples and streets throughout the city would have been flooded, flushing away the grime of decades and adding to it with the detritus from towns and villages upstream. It seemed almost inconceivable that this remarkable city could have survived
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