Hi

According to the recent update if you don't have a valid certificate issued on or before April 2021 by a competent authority you can upload self declaration in lieu of the certificate then upload the valid certificate once you got it issued at the time of reporting for Josaa counselling. Now since you have uploaded the wrong self declaration you can get your doubts cleared by calling them in their helpline no or email them which may take some time. Their decision will be final in this matter its better to ask them.

https://jeeadv.ac.in/contact.php

Hope this was helpful!