Hope you're doing well!

Based on your marks in JEE Mains, your percentile is expected to be around 97-98. With this percentile, your rank is estimated to be between 16,495 and 21,145. Each year, the ratio of marks to rankings varies due to factors such as the difficulty level of the exam, the number of students appearing, and their branch preferences.

Check out rank vs. marks vs. percentile at the link below:

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

Thanks