(i) Scheduled Castes and Scheduled Tribes are the communities that were suppressed for centuries. They were discriminated and their representations in the job opportunities were very less.
(ii) Equality does not mean giving everyone the same treatment, no matter what they need. Equality means giving everyone an equal opportunity to achieve whatever one is capable of.
(iii) Sometimes it is necessary to give special treatment to someone in order to ensure equal opportunity. This is what job reservations do. Just to clarify this, the Constitution says that reservations of this kind are not a violation of the Right to Equality.