Irrespective of the State you are from and the State Board you have studied your 12th from, CBSE has released a list of courses that a Candidate of each stream can pursue. As a Commerce student, you can pursue CA, CS, B.Com, B.Com (//B.Com) LLB, ETC. You can check the whole list of courses at: http://cbse.nic.in/newsite/attach/Compendium%20of%20Courses%20after%20+2.pdf

Now we can give you the possible courses you can study but it is you who have to figure out where your interest lies.