It's a bit ironic that chennai has 3 rivers running through it but they are so polluted by the city itself that the water is unusable. Its not like this wasn't expected either. [http://chennai.citizenmatters.in/chennai-rivers-wetlands-marsh-environment-heritage-1577](http://chennai.citizenmatters.in/chennai-rivers-wetlands-marsh-environment-heritage-1577)

Also, a war over water between India and Pakistan does not seem far fetched if they can't make radical ecogical and economic changes. They are currently relying on a decades old treaty to to prevent escalations at the moment. [https://www.nytimes.com/2019/02/21/world/asia/india-pakistan-water-kashmir.html](https://www.nytimes.com/2019/02/21/world/asia/india-pakistan-water-kashmir.html)