It is essential to fill out exam forms accurately to ensure that the information provided is correct. If you have mistakenly filled the medium Incorrect, it could lead to confusion in the evaluation process.

Here are the steps you might follow:

Reach out to the appropriate examination authorities or your school/college administration immediately to inform them of the mistake.

The exam board or school administration can guide you on the process for making amendments.

It's crucial to address the mistakes as soon as possible to avoid complications later on.

Document everything it can avoid any disputes or inquiries later on.