To be eligible for NEET, you should have completed your 12th, passed in all subjects and secure a minimum aggregate of 50% in Physics, Chemistry and Biology. It is 50% for General Category, 45% for PWD and 40% for OBC,SC,ST. This 40% is inclusive of the Theory and Practical marks scored in Physics, Chemistry and Biology collectively. You needn't score 40% in Physics, 40% in Chemistry and 40% in Biology separately. You need an aggregate of 40% or 40% depending on your Category as an aggregate in Physics, Chemistry and Biology. And along with Physics, Chemistry and Biology, you should also have studied English as one of the core subjects in your 12th. So even if you pass with grace marks, as long as your overall result is PASS, you are eligible for NEET and should you secure good marks in NEET, you can certainly take admission in MBBS.