With copyrights flowing left and right one never knows
Scifi/fantasy India is NOT Wizard's IP, and they're non-crazy enough to know it. Kaladesh is their IP, to get hit on infringement you'd have to be borrowing a LOT more. And in the end it's a unique, tangible
expression of an idea, not an idea itself, that's copyrighted and protected. Abstract concepts can't be owned. So if your SFF India setting doesn't have whorling aether channels, filigree, and/or the consulate/renegade divide, you're probably safe. I mean, look at follow-the-leader junk like The Asylum's Mockbusters and tell me you can't get pretty freeking close to an existing product while still pulling the "I'm not touching you" card.
Some companies have been known to be bullies regarding their copyrights and IP. Games Workshop became rather notorious when they decided to start clobbering at random for using the phrase "Space Marine" (Which they fairly unenforcably trademarked), doing such things as forcing the takedown of a self-published author's e-book that had nothing to do with them except its title was "Spots the Space Marine". Eventually, everything worked out for the author because GW was simply bullying a nobody and their arguments would never have held up in court, but it was a fairly trying time for those on the receiving end. Wizards, however, doesn't have a history of this kind of trolling.
You can't be brought up on trademark law if you don't actually use a trademark.
You can't be brought up on copyright law if you don't actually make a *copy*
Creating your own thing that is similar to this other thing is protected. The worst of the lot might try to bully you but ultimately it's intimidation and bluster. Very few will bother if you're not worth their time and they don't think they could win an actual case. See Also: Games Workshop (again) versus Chapterhouse Studios where they had a much better case against a real target but STILL largely lost.