What happens if the signature in CAT admit card does not match to original document...is there any chance of getting caught in exam hall

Well I'm afraid now because I've by mistakenly give wrong signature but all other information like my full name , address, academic, DOB are correct.. what should I do now.. should I affidavit???

Well, since it's you who has done a wrong sign, I guess you can do it again. By the way it's okay. Don't panic much because all the credentials will match with that of yours as you are the individual who applied. But it really sounds something strange , you yourself made a wrong sign. But it's okay, don't worry much about affidavit. Try to do the same sign in the examination sheet. They won't scrutinise it so deeply, just the curves and the letters must be matched with what you did in your application form.

Actually I wasn't really aware much about the rules of IIM about the admit card so anyways thank you:)

Okay. No issues. Don't panic. Stay calm and give your paper. Things will definitely go well. All you have to do is sign the same way, stay calm and composed and focus on the three sections of CAT. Have confidence. Wish you all the best. :)