If you have filled your school address mistakenly in an application form and there is a correction window provided by the examination authority, you should be able to make corrections during that window.

Here are some general steps you can take:

• Stay updated on the schedule provided by the examination authority.
• Regularly check the official website or notifications from the examination authorities.
• Follow correction guidelines.
• Make necessary corrections during the correction period.
• After making corrections, double check all the details to ensure accuracy before finalizing the changes.
• Submit the corrected information after you have verified the changes.

If there is no correction window provided or if you missed the chance, you may need to contact the examination authority directly to inquire about any alternative options available for corrections.