As others have already pointed out, this is due to the "group-think" mentality that is an inherent part of the hindu religion, which has spilled into the political and social conscience in the last decade, or so. I have thought hard about it, the only solution to this problem to treat hinduism as an umbrella that houses many different faiths (castes, ethinicities, linguistic groups, etc.) and then promote universal reservations across the government and non-government sectors to reflect the true hindu makeup. I also, support bringing the religious minorities into the fold. This will upset the cronyism that is present currently, and allow the truly meritorious to succeed from each group. Think of this, the meritorious get their opportunities and the demographic makeup is correctly reflected across the spectrum. Thankfully, this line of thought is gradually picking up pace in India. I am hopeful of the future that everyone, irrespective of their caste, language and faith, will be able to prosper in India.
Any reservations, ultimately, are doomed to fail as they just foster the exact same type of cronyism with the fractal levels of definitions of castes/reservations. Reservations in general encourage it, as someone has to decide who is βinβ the group, and that is never merit based.
Ultimately, blind meritocracy is the only option - but that is also extremely difficult to do. See the historic Chinese style civil service exams for how that can be implemented, and its pros/cons.
One major issue with blind meritocracy is it strongly favors those from families who can invest in their children - aka the rich. Though, there is a path for improvement for those with raw intelligence, unless the tests favor brute force memorization. Like most Chinese tests historically have.
