Hey,

To be very honest there is no such thing that you have to score good marks in your class 12th boards in order to get selected for MBBS through NEET counseling.

The candidates are required to score a minimum of 50% for general category and 45% for reserved category students.

If you will score that much you will be eligible for neet counseling without any problem. You will be provided admission on the basis of your NEET exam marks.

Hope that helps.

Thank you.