Dear,

to find out your percentile go with there officail page you will come out in that they provide you a complete details. As i guss i have not mentation your complete question. So for score go with there official page.

If you are not eligible for JEE MAIN then we  can't find a way to it but still you have a option for a direct admission by paying sum amount for getting a seat in your perferable college.

I hope you get my point.

ALL THE VERY BEST.