Vaishnavi, you haven't mentioned the class you are in right now. But to begin with, you should have completed your 12th with Physics, Chemistry and Biology as your core subjects. You should have secured a minimum aggregate of 50% in these 3 subjects. It is 50% for General Category, 45% for PWD and 40% for OBC,SC,ST. Now this is the eligibility criteria to appear for NEET which is the entrance examination for admission to Medical, Dental, Ayush and Veterinary courses across India. Now to secure a seat in MBBS, you will need atleast a score of 575 and above. MBBS is a 50 month course and then there is 1 year mandatory internship. Post this you should take MD in Psychiatry and then pursue M.Phil in Neuro Psychology. The alternate route is skip MBBS and MS and study B.Sc, complete your Masters in Clinical Psychology and then do a M.Phil in Neuropsychology.