Hey there!

Well it is not possible to determine the exact rank on the basis of your percentile, as because the rank of an individual depends upon various unavoidable factors like:

1- Difficulty of examination

2- No. of students appeared in exam

3- No. of seats available in institutes

4- Category of an Individual

5- Relative marking and many more

However we can get a rough idea of ranking by analyzing previous year trends of ranking vs marks.

Hence with the score of 75 percentile your general category rank would be somewhere in between 255750 to 287500 as per our JEE Mains rank predictor tool

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

Also if you wish to know about the colleges in which you may get admission corresponding to your score, use college predictor tool by clicking on the link given below

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

I hope you will find this info useful!