Please check if your signature is as per the guidelines.
Dont take any risk. You can call on the helpline at 1800118002.

All The best.

Read all the instructions once again and if you think you are abiding them all then contact CBSE office immediately at this number 1800118002.

check everything once again & contact the helpline

Hi anusha there. Do not be too tensed and be chill. Talking about the correction message you are getting you can check if your signature is updated logging into your account and if it is still the previous one try to contact the help desk at cbse office. You can also go to the neet form filling centers they can help you in correcting the problem. If you still have any problems comment in comment section.
Hope this answer helps
Thanks
Chandrashekhar rai
Cr at career360