With 148 marks in NEET under OBC category, you have only just cleared the qualifying cutoff, but this score is far below the range required for government MBBS seats, which usually close above 400–500 marks. Admission in top or even mid-level government medical colleges is not possible at this score. Your realistic chances lie in management quota seats or certain private/minority medical colleges if you are open to higher fees. Alternatively, you can also consider BDS, AYUSH, nursing, or paramedical courses as good backup options for a medical career.