I’ve seen a video of the bodies floating in this river. I wouldn’t go near it, let alone jump in.
What you said, it’s unbelieveably vile.
No attention will be made to another floating body in that river. I have seen photos of birds that landed on the floating body and pecking away.
In India, it will kill you.
Having lived there in the slums (and going back in a month) I can say that MOST of the rivers there are polluted beyond your ability to comprehend. One river in Chennai is so polluted that the water is ink-black with methane bubbles and the smell of it even at half a kilometer away will cause you to instantaneously vomit.
Many rivers in India look like an end-loader carved out a creek in a landfill and flooded it with old used motor oil. And on the banks you will see the Dalit and poor bathing and washing clothes in that filth.
Here is a river near the city of Kakinada: