Kaiphranos
Donor
After doing some poking around (mostly on Wikipedia) my guess is that a successful Mongol invasion will, at best, result in another iteration of the Delhi Sultanate--OTL, it was run by like five different dynasties, all or most of them Turkic-speakers who presumably came off the steppe; a Mongol dynasty would slot right in. As one of the more remote bits, and one where actual Mongols are going to be comparatively scarce on the ground, it'll probably be one of the first to split off as the Mongol empire separates, and will probably nativize pretty quickly...