BCA

No, you don't have the permission to peruse BCA without maths because in math is a compulsory subject for BCA. You can peruse BCA from IGNOU as maths is not compulsory there.

Hi,
Maths is a mandatory requirement in 12th to pursue BCA.

Hi,
Please refer to the below link:
goo.gl/IaC9W5

I am referring an answer already given to a similar type of question. Checkout this answer on shiksha:
https://ask.shiksha.com/bca-is-best-or-bsc-in-mathematics-and-what-is-career-in-bsc-mathematics-qna-4070336?referenceEntityId=4070358

BCA is about computers and B.Sc is a science/maths area that you already know. If you want to go for a job related to computers like development or hardware, this is the field for you. Still, to get good jobs after BCA, you will need to go for higher studies like MCA. Same with B.Sc though but doing a B.Ed after B.Sc maths can make you eligible for a teaching job with government as well.