the last line is simply untrue, its just unnecessarily spread as propaganda, its just a hyperbole.
I have lived among tribals, it will take quite a few generations to bring them to speed.
SC will take less, but not all of them are able to avail the opportunity.
Besides, after opening up of our economy, most job creation happens in private sector. And the first to take benefit obviously are upper caste people. Nobody is really crying for loss of govt jobs, so reservations is no longer an issue.
Interestingly though, I have seen caste bias in private enterprises. Shoking may be for some, but absolutely true.
The best of private education happens in private sector and here again, upper class got their advantage.
So there are certain perpetuation of class system which is why govt should invest more in better govt schools and special ones for tribals/backward classes.