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Avatarana or Descent of the Ganges (extracted from Wikipedia):
"In late May or early June every year, Hindus celebrate the avatarana or descent of the Ganges from heaven to earth."
There are several Hindu versions for the birth of the river Ganges.
I'm here interested in the scientific version:
Question: When (and how) this river was born (geological period)?
From How Old is Our Ganga, the Ganges "formed as a consequence of the India-Asia collision around 55 million years ago resulting in the formation of the Himalaya. This provided a large continental mass which together with large rainfall in the catchment area and long term erosion generated /enlarged the river valleys".
