Nepalese Hindu women take a ritual bath in the Bagmati River during the Rishi Panchami festival in Kathmandu.

庆祝Rishi Panchami节的尼泊尔印度教妇女在加德满都巴格马蒂河洗圣澡。

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If the Bagmati is to be cleaned up, it looks as if most of the money will have to come from overseas donors.

BBC: Alastair Lawson reports from Kathmandu

"Even though we all realise that the Bagmati - where we will all be cremated at some point - has turned into a sewer it is nevertheless a sociological phenomenon that the public while realising it, is not been able to do anything about, " he said.

BBC: Alastair Lawson reports from Kathmandu