Some of the SC/ST people definitely need reservation.But limit it to one reservation per family and eliminate the creamy layer from reservation.When I say creamy layer most of the politicians would come into that category(probably through false certificates)
Also think what reservations over the past many years have done.Whatever has been done is very little and people who gained reservations continue benefit from it which is not fair to other people from these castes. Instead of concentrating on reservations( which the parties use as an election ploy to gain votes) concentrate on providing free and quality education to people, basic amenities like food, shelter and clothing.