The rank that you get depends on how much marks you have scored in an exam. The rank can vary every year as it depends on the number of people who gave exam,difficulty of the paper etc.

As you have not mentioned your marks or which exam rank you are talking about, if you mean to know about jee rank you can visit the below link to see the approximate marks vs rank prediciton-

https://engineering.careers360.com/articles/jee-main-marks-vs-rank