There are several variations of Nam Docmai; many "Turpentines; many "Haden" (seedlings of 'Haden' called the real thing); et cetera.
Just because a grower in India identifies a tree as a particular named variety does not automatically
mean that other growers all across India will necessarily agree with that identification.
I recall a lecture where Dr. Richard Campbell, responding to a question about 'Maha Chanok', answered, "Which one?! I have THREE DIFFERENT "Maha Chanoks"."
IT IS NOT NECESSARY TO ALLEGE ANY RECENT MISBEHAVIOR OR CONFUSION as the source of such differences, as in fact, many regional variants of plant materials, independent origins of same names, adoption of attractive names heard from elsewhere, seedling propagation under variety names, and so on, have been going on for generations.