29 October 2016
If your picture is not appearing on the admit card, only then it needs to be attested. The admit card is valid.
Refer the the extract below: "In case the admit card does not bear your photograph and signature, you are advised to get your photograph & signature attested by a member of the Institute on his letterhead, indicating inter alia your name, registration number, exam, month and year of exam, Roll No, Medium, Group, Centre and postal address and carry the same to the examination centre, in duplicate, as proof of your identity. You will be required to hand over the original of the said attested letter to the examination centre, while retaining one copy of the same, for your own record. You are also advised to carry one* stamp size photograph (matching with the photograph affixed on the attested letter referred above) to the exam centre for affixing the same at the appropriate place in the attendance register.
*NOTE: Please carry two stamp size photograph if you are a unit/both groups candidate.)
You can read the full FAQ here : http://icaiexam.icai.org/Announcements/FAQs-on-AdmitCards.pdf