Hey San Dheep

If you have received a notificaion regarding your thumb impression disrepancy you can upload the correct document during the correction window from January 15 to January 31, 2020. By going to NEET candidate login, log in using registered mail id and password given, upload as per given specifications and re check  carefully as you would not have another chance onnce submitted.

for the specifications of thumb impression document go through:

https://medicine.careers360.com/articles/neet-2020-photo-size-format-documents hope this helped

all the best