Hello,
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At present you don't have any chance for correction due to lockdown. Once the lock down is done it nearly takes 30 to 35 days for correction. As it's a  government work from board of education, you will be in need to stress out for various proofs. Asking for what documents are required, they will let you know about these details. But before going directly for board of education, visit your college and let them know about the issue. They will help you out with necessities