One problem with most of India is that while their "average" yearly rainfall looks good? It mostly falls in 3-4 months then is very dry for the rest of the year.

So the runoff during the Monsoons is relatively clean, by volume & anyhow. Then the rest of the time it looks like that: 80% untreated shit.

Indians like to shit on their own "sacred river"? Imagine how respectful they are of the customs of other nations & cultures. Hint: you have to imagine it since it doesn't exist. Like the square root of -1, eh?