Hello,
Since you have mentioned that your father's name's correct spelling is BABLOO KUMAR and it is writte in your marksheet.
The mistake in spelling is in Aadhar Card.
So I would advise you to go with the correct spelling name of your father and you must get your father's name on your Aadhar card corrected as soon as possible, though it will take few weeks to get corrected.
Meanwhile you can get an affidavit made stating that BABLOO KUMAR in your Marksheet and the BABLU KUMAR in Aadhar Card are the same person by paying few nominal charges. So that you can attach it as proof whenever necessary.
Also kindly get this issue discussed with your class teacher and the School authorities, they would help you with this.
I hope you find the answer helpful.
Thank you.
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