Hello,

If you have mistakenly submitted Hindi medium instead of English medium for an exam, it's crucial to contact the exam conducting authorities or the concerned institution immediately to request a correction. They will advise you on the process for rectifying the error.

In some cases, exams are available in both English and Hindi mediums, but it's essential to confirm this with the exam conducting body to ensure that you are properly prepared for the exam. Making the correction as soon as possible will help prevent any issues during the exam.

Hope this helps you,

Thank you