How can I get a seat in mbbs ug course

To get a seat in MBBS course, you should apply for thr national level exam NEET. If you qualify it with decent marks you get a seat in government colleges. 550+ can get you a seat in other states under 15% All India Quota while 500+ can get you a seat in your state under 85% State Quota.
Besides NEET, AIIMS and JIPMER conduct their own examinations for admission to ug course.
Feel free to ask if you want more information.
Good luck to you!