Reservation a success?

There are reserved constituencies in both Parliamentary and State Assembly elections. Scheduled Castes (usually abbreviated as SC), and Scheduled Tribes (usually abbreviated as ST) are castes and tribes included in the schedules published by the government to indicate these castes' and tribes' backward status. All voters, including Non-SC, Non-ST community voters, have the right to vote for these candidates belonging to SC or ST candidate, if contesting from their constituency. About 25% of Indian population belongs to SC/ST communities. About the same ratio of seats are reserved for them in the Parliament. In West Bengal the percentage is close to 30%. The results looks promising, showing proper representation of the community. What are your thoughts on this matter?