If you want to know about your rank by your JEE mains score then i would suggest you to please try out careers360.com rank predictor for the JEE mains

https://engineering.careers360.com/jee-main-rank-predictor

It will give you your All india rank in JEE based upon your marks

See, it doesnt work that way. Every year number of applicants increase or change. The marks will change if the exam is difficult and so many factors play a role. So it is not possible to concretely give you the correct answer. But you can get an idea by checking this article https://engineering.careers360.com/articles/jee-main-result-marks-vs-rank

Hey

JEE Main Result will no longer have normalization of Class XII marks. From the year of 2017, the candidates will be awarded the JEE Main All India Ranks on the basis of the JEE Main scores.  So, the big question that many students have been asking after the change in JEE Main score calculation process is what rank will I get if I get such and such marks?
Here's the answer:
https://engineering.careers360.com/articles/jee-main-result-marks-vs-rank
All the best!