Candidates have to make online payment of INR 2500 (INR 500 per clarification+ taxes) along with the relevant details as mentioned in the online form. To seek clarification or challenge the Uni-GAUGE answer key, candidates have to fill the objection form by logging in through their application seq. no and password. candidates are also required to provide a supporting document/proof for objection along with a fee of INR 500 per question.