Hello

You can pursue BCA and MCA from any background, be it Science, Commerce, Arts, or Vocational. You just need to pass 10+2 with a minimum aggregate of 50% from any recognized board or university. You can also pursue MCA after BCA. But Mathematics plays a major role in both the courses. So, I would like to suggest you to gain a basic knowledge about Mathematics before going for the courses.

Hope this helps.

Good Luck!!!