Hello dear 

This is really a big mistake , you shouldn't have committed it but now that you have committed it you cannot do anything about it . 

But I have a suggestion , you should go through NTA  helpline number and tell them your problem , they will surely help you and give you the best guidance about what to do in this situation .

• Email:- neetug-nta@nic.in
•  Helpline number:-8076535482, 7703859909

Thankyou 

Feel free to ask your further queries if any . 

Sorry, you cannot make any correction now in your NEET APPLICATION FORM. All you can do is either report to CBSE office for the corrections you need to make or put your problem in the grievance box of your login id. This solution does not guarantee that your problem will be solved, but give it a try.

All the best.