Is there anyone who has got 50% in +2 or intermediate or 12th exam but cracked NEET and joined a good medical college studying MBBS ?
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Why you need example of such cases? If you got or feel like getting less marks in boards then you can be the one to score a great rank in NEET.
Work Hard and try to make yourself a example for everyone. It will be much better than that of knowing the student.
Anything is possible but the main factor is patience & hard work.
I hope you get my point. All the very best for your future endeavors!