Dear Aspirant,
Yes you can do . MCA will required either BCA or Graduation should have MATH one paper. So your qualified enough for entering into MCA.
Problem :
May be in starting you will not familiar for computer terms but if you focus on course then it will be easy for you all MCA subjects . You have benefit also over BCA guys , because approx all MCA colleges having one or two math subjects and you will be knowing those paper very well.