Hi Himanshu,

There is no process for DOB correction if you have got your admit card as they have now made all the details unchangable.

Defenitely you will be facing problems in the post - exam selection process, you can change that afterwords by getting your legal documents in hand.

Otherwise, this attempt may go in vain.

Feel free to ask doubts in the Comment Section.

You may refer to this article for more information of Air force Airmen Admit Card 2020.

I hope this information helps you.

Good Luck!