Your GMAT is going to be a handicap for all 5 schools you mentioned. You will be applying from a pool of thousands (ethnicity-wise) and it'll be instrumentally harder for you to be admitted when the next Indian comes in with a 730 GMAT. See if you can boost up your GMAT score and if not, don't worry about it and just apply. Harvard will be like a lottery ticket - if you get in, great; if not, don't beat yourself over your head. All the other schools will still be hard because of your GMAT score.
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