Hello aspirant,
I am here for helping you....
as per your doubt I am providing you a link below where you can check  complete process for registration pf OJEE after councelling..
Link is given below:
https://engineering.careers360.com/articles/ojee-counselling
I hope it will be beneficial for you....
For more queries you can  upvote my answer and can ask in the comment section below...

Best of luck...