Hii,

I think it doesn't creates any problem.

If the upload photo of yours and signatures does not meet the requirements and then it asked for your thumbs impressions compulsorily then NTA will inform you through mail and phone no. You have given.

After get notified you can make changes and correction using neet correction window.

For more information check out the link mentioned below.

https://medicine.careers360.com/articles/neet-application-form-correction-guide

Hope this will help you,

All the very best!!