But it's discrimination with a higher purpose.
I would urge you to reconsider the notion that affirmative action is a sustainable solution for anything. It's hack. You only need to look at the current state of India's government, which over the course of more than 50 years of affirmative action (and other varying factors) has managed to convert the government sector into a cesspool of corruption and bad management.
This seems to imply that India's government fifty years ago was NOT full of corruption and bad management. The Raj was definitely corrupt but I know little about the two decades after India got its independence - were things really that good fifty years ago? Or was it just that it was less obvious?
I'm going to step away and do some more reading on the subject before responding. Since this thread will likely be stale by then, I'll put up a blog post or similar with my updated thoughts.
"Discrimination: the act, practice, or an instance of discriminating categorically rather than individually" - Merriam Webster Dictionary
Please don't bend what the word means just because others do. If we have our own meanings for every word, than the words mean nothing.