University of Liverpool, Bengaluru Campus
Study at a world-renowned UK university in India | Admissions open for UG & PG programs.
The Bihar Board has released the official BSEB Class 12th Maths provisional answer key on February 28, 2025. Candidates can check it at - objection.biharboardonline.com. Objections can be submitted online until 5:00 PM on March 5, 2025. Late submissions will not be considered as mentioned in an official notification released by the Bihar School Examination Board.
Download: Official BSEB 12th Maths Answer Key 2025 PDF Here
BSEB conducted the Class 12 Mathematics exam for both Science and Arts streams on February 4, 2025. The Bihar Board exam codes are 121 for Mathematics (I.Sc) and 327 for Mathematics (I.A).
Following the exam, various well-known institutions also published the unofficial answer keys for the Bihar Board 12 exam of Maths subject. The official Bihar 12th Maths answer key 2025 is now available for all sets. It contains answers to the objective questions asked in the exam.
The Bihar Board 12th maths answer key allows students to compare their answers with the correct solutions, estimate their scores, and raise objections if they find any discrepancies in the BSEB 12th answer key. They will find both the official and unofficial Class 12 maths Bihar Board 2025 answer key below:
Unofficial Bihar Board 12th Mathematics exam answer key link (SetA-J)
| Set A Maths Answer Key | Set B Maths Answer Key |
| Set C Maths Answer Key | Set D Maths Answer Key |
| Set E Maths Answer Key | Set F Maths Answer Key |
| Set G Maths Answer Key | Set H Maths Answer Key |
| Set I Maths Answer Key | Set J Maths Answer Key |
The board began its BSEB Class 12 theory exams on February 1, 2025. The Bihar Board Class 12 Mathematics exam was scheduled for the morning shift (9:30 am to 12:45 pm) on February 4th. Following the exam, various institutions release unofficial Bihar Board 12 answer keys. The BSEB has now published the official BSEB 12 answer key. Check the table below for BSEB maths answer key dates.
| Particulars | Dates |
|---|---|
Bihar 12th exam date for Maths | February 4, 2025 (9:30 am to 12:45 pm) |
BSEB Class 12 Maths answer key release date (unofficial) | February 4, 2025 |
Bihar Class 12 Maths answer key release date (official) | February 28, 2025 |

Get your results instantly with our calculator!
The Bihar Board has published official answer key. For instructions on how to access the official answer key PDF, check the steps below.
To learn how to check the answers in the Bihar Board 12th maths answer key, students can refer to this which explain the release process and guides checking their answers.
BSEB 12th Mathematics Answer Key 2024: Click Here
.png)
Frequently Asked Questions (FAQs)
The Bihar School Examination Board (BSEB) has released the official answer key on February 28, 2025.
The official Bihar Board 12 answer key is available for download on the official BSEB website: objection.biharboardonline.com or secondary.biharboardonline.com.
On Question asked by student community
Hello,
The Bihar Board Class 12 Chemistry syllabus and PDF for the current academic year can be downloaded from the official Bihar School Examination Board (BSEB) website. You can also access chapter-wise study material and previous years' question papers through the official BSEB portal.
If you are preparing for the
Hi,
You can download the Bihar Board Class 12 Physics Question Paper along with the answer key, previous year papers, model papers, exam pattern, and preparation tips from Careers360.
Useful Resources:
Bihar Board Class 12 Physics Question Paper 2026 (PDF)
Bihar Board Class 12 Physics Question Paper 2025 PDF
These
Hello candidate,
Please refer to the following links below:
https://school.careers360.com/download/sample-papers/bihar-board-class-12-sanskrit-model-paper-2025-26
https://school.careers360.com/boards/bseb/bihar-board-class-12-previous-years-question-papers-pdf-download
Hello Meet,
Check the link above to download the Bihar Board Class 12 Biology syllabus 2026 in PDF format, including unit-wise topics, marks distribution, and practical experiments.
https://school.careers360.com/boards/bseb/bihar-board-class-12-biology-syllabus-download-pdf
Hello Sonu,
Check the link given below for Bihar Board Class 12 (Intermediate) 2025 previous year question papers (PYQs). Subject-wise PDFs are available for practice and exam preparation.
Study at a world-renowned UK university in India | Admissions open for UG & PG programs.
Apply for UG & PG programmes from Victoria University, Delhi NCR Campus
Admissions open for UG & PG programs at Illinois Tech Mumbai
Apply for UG & PG courses at University of Aberdeen, Mumbai Campus
UG & PG Admissions open for CS/AI/Business/Economics & other programmes.
Bristol's expertise meets Mumbai's innovation. Admissions open for UG & PG programmes