Are you asking for JEE Main?

Yes, seperate rank is provided to reserved category

JEE Main reservation criteria is prescribed by CBSE. There are certain advantages in terms of seat allocation, qualifying exam scores, entrance exam scores and age limit over non-reserved category categories.

You can check the reservation percentage below

SC- 15%

ST- 7.5%

OBC-NCL- 27%

PwD- 3%

To know in detail you can refer below link

https://engineering.careers360.com/articles/jee-main-reservation-criteria

Good Luck!!