You havent mentioned if your overall 12th percentage is 45 or the aggregate in Physics, Chemistry and Biology is 45% with 58 marks in Biology. For being eligible for NEET, a candidate belonging to ST Category should have completed his 10+2 and score a minimum aggregate of 40% in Physics, Chemistry and Biology. For example, you scored good in Physics and Biology but scored pass marks in Chemistry and you reached an aggregate of 40%, you are still eligible for NEET. It is 50% for General Category, 45% for PWD and 40% for OBC,SC,ST. If you have acheived an aggregate of 40% in Physics, Chemistry and Biology and you score good in NEET, you can join a MBBS seat. If you are planing on taking on NEET, this might help you:

Careers360 is conducting the All India Talent search exam where students of 11th and 12th PCM/PCB can test their knowledge and enhance their preparation by knowing their stronger and weaker areas and win prizes and scholarships worth 1.25 Crore.
If you are an Engineering or medical aspirant, it is a great opportunity for you. Take the test, perform the best, avail the scholarship and win prizes.
You can win exciting prizes such as:
50,000/- cash Prizes, Upto 100% Scholarship on JEE / NEET AI-Based preparation packages, Laptops, Smartphones, Amazon Echo, Careers360 Almanacs, Powerbanks, Upto 250/- paytm *Cashback offer
Link: https://learn.careers360.com/careers360-talent-search-exam
http://bit.ly/2y6HY6U

Hello student as per neet eligibility criteria Candidates must have Physics, Chemistry, Biology/Biotechnology as their subjects inClass XII. All applicants must have obtained the necessary aggregatemarksin the qualifying exam: General Category- 50%marksin qualifying exam. OBC/SC/ST Category- 40%marksin qualifying exam.
Help me with your category so that I can provide you exact information.

Feel free to comment if you have you have any doubt
Good luck

National Eligibility cum Entrance Test

Counselling | Application | Eligibility | Result | Cutoff | College Predictor | Answer Key | Accepting Colleges

Get Updates Brochure