I understand casteism, I worked with indian devs for two decades. I would suggest you to read what Gandi said about negros. I have a news for you; "brown" people can be racist too. White westerners do not have a monopoly on racism!
I never said that Indian people can't be racist. I'm sure they can be racist, caste-ist or whatever the hell "ist" they like. But that doesn't automatically make them the same thing
Ok, sorry that was way too confrontational. I guess it boils down to definition of a "race". But given historical parallels, I still insist casteism is a type of racism.
Go read up on what the caste system is, its history and how it effects life within India. It seems you'll learn something new.