Hi student,

According to the official notification released by NTA, the NTA will cancel applications of candidates in case of multiple filling out of application form. Candidates who have filled out the January examination form and appeared for it need to login on jeemain.nic using their previous application ID and password. If you fill exactly same form then your candidature shall be cancelled. In order to avoid cancellation, login using your previous details and proceed.

Hope it helps.

Good luck.