Hi Aspirant

To appear in any BCA entrance exam you need to have a subject i.e mathematics which is compulsury.So you cannot skip it.

Usually The minimum eligibility for this course is 10+2 or equivalent exam with minimum 60 percent marks and mathematics as a compulsory subject in class 12. 

If you haven't studied mathematics and have interest in computer application you can do some courses.

Hope this helps.

All the best.