When GOD had created this UNIVERSE there was no CASTE. We have created these CASTES. We share ONE SUN, ONE MOON, ONE EARTH. This proves that the CASTE is only ONE that is Human Being and there is only one GOD- We call HIM in different names thats all. Then where is the question of Brahmin, Hindu, Muslim, Christian, SC, ST, OBCs ete. I dont know why we dont understand this simple logic. Is reservation really required then?