Hello,

Be patient.! all the process will said to you by the board. you will be notified regularly if there is any updation.

after exam if you clear JEE mains then you have to wait until counselling dates come. then you apply for counselling.there you have to pay some fees through net banking which will be refunded back when you take an admission in any college you have given in the list or any college option given during counselling. Counselling is a several round process. You don't have to register for all the rounds. you will forwarded automatically if you don't get any college option in any prior conducted rounds. if you get one option and you are not interested then you have to apply for further rounds and for that there is no charge.

if you are going for spot round or any other pop-up round then you might have to register incase if the board notifies you to do then only.

for more details you can visit NTA site.

Hope it helps!