Dear Aspirant, CMB course deals with the fundamental units of life i.e cells and molecules. It is actually a branch of biology that specializes in study of life processes at cellular and molecular levels.

It is a post graduation course  with a duration of 2 years for which you need to have a B.Sc degree in microbiology, zoology,botany or genetic with more than 50% from a affiliated University.

Here is the link for all government medical colleges in Maharashtra with courses,brochure,fees and admission details:

https://medicine.careers360.com/colleges/list-of-government-medical-colleges-in-maharashtra

Check out courses and fees of these colleges.