Student in CBSE curriculum

Are there anyone from CBSE (Indian) curriculum who got into Cornell for mechanical or any other engineering programs?
I would like to know how to make my application good enough to impress the admission officers.My 11th marks was jus 90% (the exams were tough) but 12 grade mid term marks are good and in 10th i received a 9.8 . Can these marks get me in? My ECs are basically about MUNs quizzes(reached semis) external science tests and science exhibition. Are they good :expressionless: Post information about the essays you guys wrote and generally anything you guys did that gave you admission.