Hello,

Admit card will come 15-10 days prior to your exam date. It will have all the details and location test center where you will give exam.

It will release by the end of december or first week of january. No need to be worries. You will be notified by the board to download the jee main admit card.

Keep in mind that if you have a center far or out of station then prepare yourself accordingly. If it is in your same area where you live then plan how to reach there.

Keep your admit card safe. It is really needed later. Don't lose it in anyway and keep a soft copy of it with you. even if you lose you can make a print of it again.

Hope it helps!