Yes, there are registrations in university admissions, which is the one I used. It does not extend to private employment. Regarding the resentment part, yes, people have resentments against reservations, though now even higher caste groups have started demanding reservation - this means the community will call for strike, stop trains, buses to get the attention of the government. OBC reservations in India were started in 1980 after a similar country wide strikes.
