Hiii Shivali :)
You haven't mentioned the college in which you want to take admission. Nevertheless, the eligibility criteria to take admission in any medical college though NEET requires atleast 50% aggragte score in 12th.
Since your score is 73% so you can take admission in the medical college. What matters the most is your NEET score.

All the best :)
Hope this helps :)

Dear Shivali, your 12th marks have no importance if you have to take admission in any Medical College for MBBS/BDS/BAMS/BHMS/BUMS/B.V.Sc. You have to appear for NEET for admission in these courses across India. This is the case even if you want to take admission in a Medical College abroad as well. Then there are AIIMS MBBS and JIPMER MBBS which conduct their own entrance examinations for admission to their Medical Colleges. Apart from this if you have any other course in mind, please do let us know and we shall help you.