Wondering about the people who do this

[Byrd]

It's very common in that area of the world.  In areas where there are a lot of Muslims, alcohol to drink is forbidden, so you see "bathtub hooch" and similar things and a lot of similar poisonings.  It used to happen here in the US during Prohibition.  They'll water the drinks and then "boost" it up with "rubbing alcohol."

Here's a list of the most prominent cases (since 1963... note how many are in India) 
https://en.wikipedia.org/wiki/List_of_me..._incidents