Can a candidate change the Date of Birth from what he/she has submitted in the online application? Are there consequences for submission of false information?

The Commission does not allow change of Date of Birth that has been furnished by a candidate and recorded by the Commission on any ground whatsoever.

If a candidate furnishes false information to the Commission or suppresses information or adopts unfair means in the Examination like impersonation, cheating, etc., he/she is liable to be disqualified and/or debarred from writing UPSC Examinations as decided by the Commission. A detailed stipulation in this regard is incorporated in the Rules of Examination/ Examination Notices.