What are my chances at Cornell/Duke/Northwestern

I am an International student applying from India. I just began my senior year. I would like to know where I stand and what are my chances at these schools. If I don’t fit into these schools it would be really appreciable if you guys could suggest any alternative schools. Thank you so much.

I am primarily intending to pursue an Engineering major. Either Civil or Industrial.

Tests/Grades
SAT: (2nd attempt)
CR : 630
Math : 800
Writing : 680
I haven’t taken the subject SATs as yet but plan to take the Math 2 and Physics before applying.

In India the schools don’t provide any GPA as such hence I’m attaching my grades.(In Percentage)
Grade 9 : 85%
Grade 10 : 95.2% (State High Ranker)
Grade 11: 82%
Grade 12 (Predicted): 91%
I have consistently been in the top 5% of my class.
I study in a State board college and my subjects include Physics, Biology, Math, Chemistry, German and Literature.

ECs :
Leadership:
I have founded an Non for profit organization through which more than a thousand underprivileged/visually impaired/challenged students have been provided education in subjects such as English and others free of cost. My organization has international presence in Dubai, UAE and in Lubbock, TX with volunteers conducting activities in these places. Also arranged fundraisers which raised more than $2000. This organization has received extensive media coverage in my city including newspapers. Also one of the volunteers is an NYU student and hence NYU is funding a few of our projects.
Will be organizing a TEDx event.
Head of school debate team.
School head boy
Extensive MUN participant: 2 Best Delegate Awards and 3 High Commendation awards.
Devised an electronic voting system by which students can easily elect the student council.
Invited to Israel for a science conference (did not attend)

Sports: Swimming for the last 11 years.
Captain of school swimming team for the last 4 years.
Swimming awards : 6 Gold, 3 silver, 1 Bronze ( School and district level)
1 silver (State Level)
Established the school Chess club which now has more than a 100 members.
Chess awards : 2 Silver ( School Level)
Shot Put : 2 Gold, 1 Bronze ( School Level)

Awards : Science Olympiad First Ranker
: Maharashtra State Scholarship holder
: Runner up in intercity cyber quiz
: 3rd prize for developing best smart city plan
: 2nd prize for Inter city Elocution competition
: A grade for intermediate art exam ( National Drawing exam)

I’m also a professional power lifter.

I shall be writing a pretty good essay and will be getting it reviewed by an Professor of English

Your SAT score does not seem exceptional for these good schools but you have good extracurriculars. However applying international can have its challenges compared to applying as a US student