JNU does Not even have Department of Commerce You can check available Departments At Jawaharlal Nehru University at the following link:

https://www.jnu.ac.in/

It does Not have Commerce Department Hence it does not offer any king of Courses on Commerce.

JNU does not offer M.com programme. You can check the complete list of the Masters Programme with the given below link.

https://university.careers360.com/articles/jnu-courses

Good Luck!