Admit card query

dear friends,

When our hall tickets does not bear photograph and signature institute prescribes to get attested from a CA our photo and signature along with our exam details in his letter head. It does nor prescribe any formats.

Kindly clarify whether the CA should affix his stamp and sign above our photo or is it enough if we get his signature and seal in his letter head certifying our photo, signature or other details.

Thank you in advance......