[srean]

> But is that proof that all of them died of covid?

All was never even the hypotheses, that is a strawman argument. The hypotheses is that this incident, of thousands of bodies floating down the river and buried on the sand bars, is a striking, once in a century phenomena given the numbers. If this was normal we would have seen such numbers prior to covid.

The major reason, as you had noted as well, is the breakdown of the infrastructure for dealing with deaths by a state that is not competent enough to prevent them. Some state did far better than others. You had mentioned two, Tamil Nadu and Kerala.

Note that the population of UP + Bihar is the same order of magnitude as a middle sized European countries. One does not need other states to contribute if these two are badly hit.