Hey Rohan:)

If you have accidentally  entered the wrong date of birth in your IB ACIO application, don't panic.once the form is submitted it can't be edited, so you should make a notarized affidavit stating the correct date of birth and explaining that it was a genuine mistake, along with supporting documents like your birth certificate. Contact the help desk to inform them of the mistake and follow their guidance. If your shortlisted, be honest during the selection process and present the affidavit and supporting documents.

Make sure to keep all supporting documents ready incase the authorities ask for clarification.

Hope this helps!