After the JEE Main examination is conducted, the National Testing Agency releases a provisional answer key along with the question papers and recorded responses of candidates on the official website. Candidates are given a limited time window to review the answer key and challenge any question or answer they believe is incorrect. To challenge an answer key, candidates must log in to their account, select the question they wish to challenge, and submit supporting evidence or justification. A nominal fee per question is usually charged for submitting a challenge. Subject experts review all the challenges submitted by candidates, and if a challenge is found valid, the answer key is revised. The final answer key is then used to prepare the results.