Hi, after completing your qualifying examination i.e 12th boards you can apply for undergaduate courses but in master level courses. The marks obtained in class 12th boards determine your eligibility to take admission to undergraduate courses in various college, that have different procedures to select candidates and always have different % of quota/ reservation for SC category. So if you belong to SC category yes you can apply for it. Admission to master's level takes place after you have completed your graduation and your marks in your final year in undergraduate course determines your eligibility for admission to master level courses. Your marks in 12th boards is not related to your admission in master level courses.
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