I would like to share some info regarding CAT 2014 registration.
a) Please make sure that the Caste Certi that u upload is in either English or Hindi. If not, then download the SC/ST caste certificate from the CAT website and get that attested by any of the officials mentioned in the second sheet of the downloaded copy. U can fill he details like ur name, caste etc. with ur hand, need not be typed.
b) Make sure that ur Caste certi is SELF-ATTESTED. If not, u will be required to register again.(I had to do this:(....)
c) If it is the student who makes mistake while registering, then they will not reimburse the amount and u will have to register again.
d) After u have registered and made the payment successfully, plz call up the Cat helpline number(1800 210 0151) to ensure that ur application and Caste certi are valid.( U need to do this coz they will not notify you that ur caste certi is invalid. U need to call them up to find out abt it)