Hello,

It is the applicant's responsibility to check the details of the exam such as exam center, exam date, exam time and other details given in the admit card. You have to read the instructions given in the admit card carefully and prepare yourself to attend the exam. As you haven't reached the examination center on time you will not be given any other chance. You cannot do anything about it now. But JEE Main fourth session is yet to be conducted. If you have applied for fourth session then you can attend the exam. Please check the admit card and read the instructions carefully and make the arrangements accordingly.