Well, flying experience in India is very/extremely bad! (For Starters)

Like some dude mentioned, people keep steppin' on each other (Very Freakin' True)
The controller keeps asking you your "DME" from the XYZ fix, Freaking Constantly! (Like its timed with each breath he/she takes)
Since, English is not their "Native Lingo" but the for some reason are considered or classified as "Native Speakers" is "Horrendous"
They for some reason also have a habit of vectoring you in the "Eye of a Thunderstorm"
They definitely for sure throw in, For Example, "You are 20 Track Miles" from touch down. (I already know how many track miles I am, bud)
Also in their part of the World they are not "Familiar" with "phonetically" telling you which fix to proceed or go direct to. They just mumble something & expect folks, not familiar with it, to just proceed to it. (By Correctly Guessing, I guess)
Frequencies tend to get pretty congested cuz people tend to talk a lot. (Cuz of Language issues)
You only get your Departure Clearance when you are taxing to the active R/Wy or busy doing your "Before T/O Checklist" & they (ATC) very conveniently rattle off a bunch of stuff w/o askin', if you ready to copy!
Also when you ask for "Push & Start" Clearance you have to mention "number of Pax on board & THROUGH SECURITY" Honestly, I don't know if they went thru security cuz I never saw 'em go thru. But, apparently, if you don't say it to be "legally correct" ATC insists on you saying "Thru Security"
Another "terminology" you will hear, quite frequently, in that region (& Middle East) is "Charlie Charlie" its their way of saying/acknowledging "Roger or Affirmative". ( I never use it)

All in all, its not a pleasant experience! (Over all)

Hope this helps!

Good Luck Bud!

Fly safe y'all!