Here's the thing with your GMAT - could it be higher? Maybe. Only you know the answer to that one. Would it help if it was higher? Sure, always. But is a higher GMAT score your key to *differentiation* from that robust Indian Male demo? Doubtful. Indeed, when we work with Indian Male applicants, we often pay less attention to the GMAT score (as long as it is at least 680 or so - preferably above 700 - but this is true of ALL demos) and far more attention to the diversity of 1) perspective, 2) transferable skills, and 3) program interest.
The first is the most critical: perspective. What parts of the world have you seen, what people have you interacted with, what things have you learned, and is your vision for your life, etc. These are super important in a more crowded demo because it's not just similar names and faces ("class photo diversity" as I call it) that schools are looking to mix, but also experiences and vantage points. Part of the reason that Indian Males get sort of ambushed in the admissions process is because the point of reference is so similar. Often strong family dynamics (usually dating back several generations), lots of non-profit and community activity (usually framed as "NGO" work), high achievement academically in areas of science and technology, client liaison work in a tech capacity, etc. All of these are great and none of them are any sort of "problem," but when a high volume of people share profile elements, it reduces what a b-school class can glean from adding another person with that perspective. So for an Indian Male (and also a White I-Banker or any other highly represented group), it's so important to reach for experiences that differentiate and show you have a really unique way of seeing the world, based on the life you've led. (Just to avoid the elephant in the room, yes, this is where we can provide a lot of help.)
Transferable skills are a similar ball of wax and just as important. You can imagine that if the above is true, then most Indian Male applicants are highlighting the same skill sets as well. (This is when transferable skills are being highlighted at all. I've blogged about this extensively, but SO many applicants miss points for failing to clearly articulate their skills that are transferable to the next job. Indeed, rather than say "I've done X, Y, and Z, people should be thinking in terms of I am excellent at A, B, and C." But I digress.) You want to think carefully about your ST goal, picture what that job calls for, imagine what the recruiter is going to want to say, and then articulate *those* skills in your essays. That will almost automatically diversify you from most in your demo.
Finally, you want to diversify your program interest. Get away from the popular programs and clubs and the brochure literature and dive into areas of true passion. Figure out what makes a school tick and drill down to its DNA. I always say that there are four levels of "school fit" articulation and there is a clear hierarchy to what you can achieve. Level 1 (worst) is aimless, one-size-fits-all stuff that could apply to any school (obviously). Level 2 is what the school markets itself to be (this is the bare minimum standard to hit). Level 3 is what the school actually is (much better), and Level 4 is what the school perceives itself to be (best of all). If you can tap into the fourth level, you will FOR SURE diversity your school fit arguments from 99% of the other applicants from ANY demo.
Anyway, I got a little excited there, but that is how you migrate away from this huge flock of similar applicants and become something more exotic. From the "bones" of your application (the stuff you listed in your profile), you seem to have what it takes. It's just going to be about constructing a great narrative and bringing it home. We're here for that, obviously, if you want to engage one of our consultants, but one way or another, that will be the challenge at hand.
Good luck out there.