If you have uploaded the wrong passport size photo during the application process for an exam or admission, you should try to connect as soon as possible. Correction depends on the specific policies and procedures of the exam or admission process. Some general steps you can take are:

Review the guidelines provided by the examination or admission authorities regarding Correction.

Reach out to the relevant authorities or the help desk of the organization.

If the authorities permit the correction during the verification, they will provide instructions on how to proceed.

Be prompt, i.e do not it delay in seeking correction,  as it may affect your eligibility or cause other complications.

Ensure that you provide correct documents.

If you encounter any difficulties in correction process, Don't hesitate to seek assistance from relevant authorities.