Get a bachelor degree (MBBS) by clearing competitive exams like NEET.
An M.B.B.S. doctor who specializes in medicine and acquires an M.D. (Doctor of Medicine) degree becomes physician. A physician job is to understand patients problems, study the results of clinical tests, diagnosing the illness and then prescribing the course of treatment.
The overall duration take upto 5-6 years.
Good luck.