Hiya,
Congrats on a strong profile. Your grades at NIT were fabulous and that is a big plus, and GMAT is quite solid also. Furthermore you are not part of the most-typical Indian male applicant profile who work in either IT or engineering... aim to highlight the healthcare industry consulting exposure and perspective you have, in order to show what you'll bring to the class. I agree getting involved in a community activity, ideally something you can speak passionately about, would be a plus especially since you have a year or so.
You haven't mentioned your career goals unless I missed that... those can impact your admission chances too.. you want your whole story to make sense so to speak. But overall if you put together strong applications, recommendations, essays... and nail the interviews... I'd hope you could be considered at top schools... so it's up to you... continue to do research in the coming year on your goals and on specific schools. For more on choosing schools, check out our free download at:
https://info.mbamission.com/Selecting-Yo ... ram-E-Book.
Let us know how we can best help!