Dear Mibang, you should score a minimum aggregate of 50% in Physics, Chemistry and Biology/Biotechnolgy in your oard exams if you are from General Category. It is 40% for SC,ST,OBC. Let's say if you achieved an aggregate lesser than required for your Category, though you have qualified in NEET, you can't take admission. This is because you haven't met the eligibility criteria to appear for NEET. So it is important for you to score an agregate required for your category to take an admission if you qualify in NEET.