Hii

If you can uploaded a blur thumb impression and have submitted your application then you photograph will get rejected and you can make the correction once it gets rejected. And the correction window will start from 8th january and closes on 18th january. So make the changes within this time periods so avoid rejection of application.
Refer to following link for more details
https://medicine.careers360.com/articles/aiims-mbbs-application-form

Thanks!!