It is only in India that being "Backward" is considered a big plus. More and more communities are muscling their way into the backward communitiy definitions - Gujjars, Meenas, etc in Rajasthan.
We must do away with ALL reservation based on CASTE. Reservation MUST be given on ECONOMIC CRITERIA only, irrespective of caste or religion. Also, there shall be NO reservation for jobs, once a student avails the benefit of reservation in Education. This will ensure the students will have to strive hard to qualify in their exams.
Once a person avails of reservation benefit, his children should not avail of it, because the family is 'economically uplifted'. This will ensure that the needy will get the benefit and we keep shrinking the basket of reservation and encourage merit across all sections.
Even otherwise, the current craze or pressures to have more communities in reservation category have probably introduced some kind of ranking (based on merit economic criteria) amongst the reserve categories.