First of all, I would strongly discourage you from starting your MBA right after you finish your BSc.

A couple of reason for that:

1) You wont be able to get admission any good business schools anywhere in the world without at least 1-2 years of work experience.

2) You actually learn more if you have previous work experience because you can relate to what you learn in your work life.

But if you still want to go for the MBA after you finish MBA, you will only be able to get into second or third rate schools ..

Scholarships generally depend on the schools your chose and your GMAT scores.