Hi ngarg,
Thanks for posting. Regarding how you can differentiate your application, I recommend you read this case study of an Indian engineer who was accepted into Columbia, Tuck, and MIT:
https://www.stacyblackman.com/comprehens ... ies/case2/For your GMAT, if you believe you can improve your score by 30+ points you may want to take the test again. Although at your point in your career admissions teams will focus more on your work experience, your GMAT score is below the average at the schools you are interested in. For Chicago Booth for example the average score is a 720, with an 80% range of 660-760. This means that with your score you would be near the bottom 10th percentile. This does not necessarily mean you will not be accepted, but it is not a preferable position to be in.
Hope this was of help.
Cheers,
Conrad and the
Stacy Blackman Team