This is a very un often scenario. I would recommend you to see the application details more accurately from the confirmation page and also check that you have put the correct DOB in your application or not. If you have committed mistake in your application while filing up your DOB then also such problems occur. Also such problems can occur if you have server problems in the website, so you can also try in some place else.

Now if you see that there are no problems then I would recommend you to contact the NTA helpline number and get discussed. They can provide you more insights:

• jeemain@nta.ac.in
• 0120-6895200
• 011-40759000

For JEE MAINS revision plan you may visit the link below:

https://engineering.careers360.com/articles/jee-main-revision-plan

I hope this answer helps. All the very best for your future endeavors!