The Bihar Board of Open Schooling and Examination (BBOSE) has revised the timetable for the Class 12 examinations under the December 2024 session. The authority announced that the exams, which were earlier scheduled for late August and early September, will now be held in September 2025.
According to the updated schedule, theory examinations will take place on September 9 and 10, 2025. The changes affect five major subjects — Mathematics, Business Studies, Chemistry, Pedagogy, and Philosophy.
Revised BBOSE Exam Dates 2025
The latest exam plan introduces subject-wise adjustments. Students can check the updated timetable below:
| Previous Date | Rescheduled Date | Subjects |
| August 26, 2025 | September 9, 2025 | Mathematics, Chemistry |
| September 6, 2025 | September 10, 2025 | Business Studies, Pedagogy, Philosophy |
The examinations will be conducted in two separate sessions. On September 9, 2025, papers will be held in the morning shift (9:30 AM to 12:45 PM), while on September 10, 2025, exams are scheduled in the afternoon shift (2:00 PM to 5:15 PM).
Admit Card Validity Confirmed
The board has clarified that the admit cards already released remain valid for the new dates. Students can continue using the same hall tickets to appear for the rescheduled examinations.
To access the admit card, candidates must:
- Visit the official website – bboseonline.com
- Navigate to the Notice Board section and select the admit card link
- Log in using registration number and date of birth
- Submit the details and download the displayed admit card for future use
