Hey,

There us no such barrier for students who want to pursue MBBS degree after their graduation is completed.

But one major eligibility which needs to be met in order to take admission into various MBBS colleges is a minimum of 50% (for general category) marks in your 10+2. As you have scored less percentage in your class 12th so i guess it makes it difficult for you to get admission into MBBS degree.

Link : https://medicine.careers360.com/articles/neet-eligibility-criteria

You can refer to the link above with more detailed information.

Hope that helps.

Thank you.