Hi Aspirant,

Hope you are doing great as per the question asked by you yes you do both B.C.A + M.C.A if you take commerce with maths or computer as you will have one subject that is maths or computer which is basic requirement of doing B.C.A + M.C.A. As doing B.C.A requires knowledge of basic computer and its applications then only you can pursue it.

Hope you found this answer useful.Stay motivated stay positive.

All the best!