Okay listen there are 100 seats in a college. 60 seats oc gallaki, 20 seats SC/ST vallaki, 20 OBC vallaki. So ippudu ni caste endi OC so nuvvu deni kosam fight chesthunnavu for those 60 seats, so niku seat raaledu ante karnam endi inko OC vadu dengadu anthe. It is as simple as that. Niku oka hypothetical case suppose cut of marks for oc is 75, endukuante aa 60 seats ni nimpocchu and if suppose rasina sc st vallalo ee 20% ni fill chese vallu if they perform better and get 85/86 marks then the cut off for sc/st will be fucking 85/86. I hope you understood. In case you wonder is this right ? NIT Warangal ki state cut off rank is lower than other states.