if your registration number is not found while trying to download the admit card, first check your admit card or hall ticket details issued by your school or board, as it usually contains the registration number. If you do not have it, contact your school authorities immediately, as schools maintain a record of all students’ registration numbers submitted to the board. Some boards also provide an online portal where students can retrieve their registration number using personal details like name, date of birth, and school code . Ensuring the correct registration number is crucial for downloading the admit card and appearing for exams on time.