Hello aspirant,
Hope you are doing absolutely great.
So with regard to your query,
If there is no date of birth then just submit an affidavit to the authorities regarding the same, or else just contact the authorities of the board for the purpose of the same.
Just go for the second one, because sometimes the authorities might not accept the affidavit, and think that the document is forged.
So, go tot the board authorities and request them to change the mark sheet accordingly.
Hope this helps you!!

DU Delhi

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