Hello STudent

Date of birth certificate which candidate get in the 10th class pass certificate or with admit card of the candidate. The image of your aadhar card or or any type of proof regarding date of birth it may be  from the letter pad of the principal of school. A copy of school certificate by principal mentioning your actual date of birth written on the letter pad of the school duly signed by the principal will be accepted as  an alternative proof of date of birth.

Hope this helps.