Hey dear,
According to me, you should pursue a B.A.LLB because it includes B.A. subjects such as political science, economics, and sociology, which are comparatively easier and provide a better picture of society and will serve the requirements of being a Criminal Lawyer. This can help you connect with your law courses even more, allowing you to better prepare for your judicial tests.

But, since you are commerce student, you would have a better grap in commerce subjects. So, you cal also go with bcom llb.

Hope your doubt is resolved now.