It's weird, from an anthropological perspective. They're kind of a 'human swarm', if you can imagine such a thing. They literally just keep reproducing and will not stop, regardless of consequences . You see it a lot in the third world. As Stalin once said, 'Quantity can be a quality all of its own.'
The culture of arranged marriages doesn't help - there are plenty of thoroughly undesirable, unpleasant Indian men who never have to worry about being social or attractive to others or bettering themselves, because their bloodline is already secured thanks to the machinations of their parents wrangling them a Pajeeta of their very own. Because of this, there's a lot of traits (social, psychological and genetic) that would, in a normal society, have been weeded out, that have been allowed to thrive and fester and get worse. This is before you even factor in the inbreeding, and the fact that a lot of those arranged marriages are actually between first cousins or other close family members.
That results in some absolutely crazy, catastrophic mutations and deformities being fairly commonplace in Jeetland. You have things like cleft palates, clubfoots and misshapen limbs, hydrocephalus, but you also get some absolute whammies like babies with the wrong number of limbs. Or faces.
I don't think that the jeets especially care, though. If anything, these deformities are often seen as gifts from their gods, because a lot of deities in Hindu mythology are depicted with multiple limbs, two faces, etc.