Dear student,

Yes, you can do B.C.A after completion of 12th standard in Commerce Stream. But not all colleges will accept and give admission based on Commerce background. Colleges have their own criteria for admission , so few are there who won't allow candidate without mathematics and many are there who allow also without mathematics in their 12th standard. So don't worry you can do BCA from the colleges which gives admission without Mathematics in their 12th standard.

Hope this helps you.

Best of Luck!!