Hi sidhant, 

If you look at the statistics, more engineers pursue MBA than commerce students. As far as the syllabus and curriculum is considered, you need not worry about all that because generally all B-schools do take care of these things. Basics are explained to bring all students to same platform. And apart from that you'll definitely have at least few commerce students who can help you out with technical commerce stuff. So, one does not need to worry about the studies aspect, science students can easily pursue management. This is what I've understood after meeting os many science student in my class and pursuing CAT.

hope this helps 

Thanks