The question is veru subjective and the answer to the same depends on what specialization do you want to get your MBA into. As far as scholarships go, it is dependent on two basic things.
1) how much do you want the university versus how much the university wants you. For example, Wharton gets close to 10,000 applications (most of them very very qualified indiciduals) and therefore knows that if you dont accept their admission someone else very qualified will. The dynamic may be different with other schools.
2) How much can you negotiate. most of the indian students dont know this, but you can negotiate your aid package. for ex, if one comparable university is giving you $20,000 in aid then you can take this offer letter and let the other university you have applied to know that you would love to join their school but if they can better the offer from this pervious university. The key is to be civil and polite but not needy and desperate. remember that they also want talented people to come to their school for post graduation you are an ambassador for their brand.