what is my chance to get into cornell ?

I am currently in grade 11th. I have secured a 10 cgpa in classes 9th and 10th. But in class 11th i am expecteing to
score 77% and in 12th I am aiming for a 95%+. I know my 11th grades are not much appealing.I want to do my
undergraduation from cornell university and I need the Tata scholarship. I am the vice house captain of my school and I have worked for the Indian cancer society. I am currently doing the gold level for duke of Edinburgh award and i have 2-3 awards in MUNs. Also i am a part of the chemistry club and community service club of my school. I have also been doing a lot of community service within school. I am yet to give my SAT. Please tell me about my chances of getting into cornell. also what should be my sat score score to improve my chances and what else should I do to get into cornell.

A 77% is not good at all. Your English skills, from your post, are lacking too.

77% would be one reason why Cornell would reject you, even if the other parts of your app are good. 10th and 11th grade scores are good. Your ECs, well, aren’t something that distinguishes you from 1000s of applicants. I know a tata scholar at Cornell(he was accepted ED for the class of 2020), and he was probably one of the top applicants in the country.

You need a school more like northeastern that has a low toefl score requirement and no sat or act for international students.

Cornell is out of range,