But they have their own version of Affirmative Action, notably quotas for universities and government jobs, and a very common form of caste discrimination by upper-caste Indians in the US is to claim a lower-caste graduate from a prestigious university like IIT isn’t a genuine one because he was a “diversity admission”.
IIT has a common entrance exam and admissions are offered solely on your performance in that exam. If you see someone getting in with a very low score compared to the rest of the class, they will be rightfully branded as "diversity admission". It is no wonder that 60% of dropouts at 7 IITs are from reserved categories: https://www.thehindu.com/news/national/parliament-proceeding...