General link: http://en.wikipedia.org/wiki/Organ_trade#Illegal_organ_trade
General link: http://en.wikipedia.org/wiki/Organ_trade#Illegal_organ_trade
That is probably the reason India is ranked high. No "surprise kidney removals". It is usually the rich (and sometimes people from the west) that can not get a transplant legally in their countries opt to buy their way out of it in more lax countries.
I somewhat understand where that skepticism comes from, as scam operations in developing countries are not unheard of.
That said, this would seem to be a big enough operation to not be going down that route, and to be fair, these organ stealing operations are far less common than we fear them to be. Just a bit of paranoia floating around.
I'd be far more worried that this operation is taking risks with patient care (in-op and post-op) in its cost cutting. I'd think it much more likely that you walk away from a low-cost hospital with an infection than missing an organ.