Sales & Marketing Profile

Dear Counsellers.

My GMAT score is 660 (avg) In practice tests , TEST DATE : SEP 7 2016
GPA : approx 3.0 (7.1/10.0 CGPA) ( Mechanical Engineer, INDIAN MALE)

I have 5 years of Experience in Sales And Marketing in EPC Company( Engineering, Procurement and Contracting).
Last held Position : Sales And Operations Manager, Region UAE ( Responsible for Entire UAE market region)
Job Description : Bid and undertake - Turn Key projects design customized solutions in Construction industry- offer technical solutions. (PS :This is a one line description)

I am from India, but work experience in UAE, Qatar and Kuwait.
Presently an entrepreneur in INDIA. I have my own Building material trading company established in 2016, I represent some manufacturers and export building materials to the Gulf region.

I request you to elaborate my chances of getting into B Schools in the 20-30 Rankings in US news.
Im looking to major in Marketing & Strategy
Future Career aspirations in Product planning or CPG.

I am interested in schools like NYU stern but skeptic if they favor candidates with finance background or Tech in International Applicants.
Please do advice if candidates in my background can contribute to the diversity, that the B schools are looking for.
The schools are not very inclusive of all the sectors out there when they describe their class intake. If that is the case, if a candidate applies from an under-represented sector(not country), does he/she have a better chance ?

I apologize for coming at you with too many questions at the same time but as you know I've less time so