hmboy17, I encourage you not to think of the question as, "What should my GMAT score be?" but rather, "How can I differentiate myself from other applicants with similar backgrounds?" This is true for anyone applying to a competitive business school, not just applicants with Indian/IT backgrounds.
You can differentiate yourself using all parts of your application. In your MBA admissions essays, do you have great leadership experiences to describe? In your interview, will you be able to passionately explain why a certain business school makes sense for you given your career goals? What are you passions outside of work? Where do you want to be in 20 years? These are all questions that admissions officers will ask when they review your application.
By the way, I completely agree with you that someone won't be ignored simply because he comes from a certain professional or ethnic background. But it's inevitable that every applicant's direct competition comes from those who are most similar to him, and the more people there are of a certain background, the tougher the odds are for each person in that applicant pool!
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