The Bihar Public Service Commission (BPSC) will conduct the recruitment preliminary exam for Assistant Section Officer (ASO) on 13 September 2025. The official answer key will be released on the commission’s website to help candidates evaluate their responses, estimate scores, and prepare for further stages of the recruitment.

The BPSC ASO Answer Key is essential for all examinees to compare their answers, raise valid objections if required, and anticipate their chances of qualifying. This key is available in PDF format and includes answers to all sets (A, B, C, and D) of the question paper.

BPSC Assistant Section Officer Answer Key Dates 2025

The official timeline for the release of the answer key and related activities is as follows:

The final result and updated answer key will be released after the resolution of all submitted objections.

How to Download the BPSC Assistant Section Officer Answer Key 2025?

To access the official answer key, candidates must follow these steps:

1. Visit the official website: bpsc.bih.nic.in
2. Navigate to the “Notices” or “Answer Key” section.
3. Click on the link titled “Provisional Answer Key – Assistant Section Officer, Secretariat, Prelims Exam 2025”.
4. A PDF containing all four sets (A, B, C, D) will open.
5. Download the answer key and match it with your question paper set.
6. Save a copy for future reference or for raising objections.

How to Raise an Objection Against the Answer Key?

If you find any discrepancy in the provisional answer key, BPSC allows you to submit objections with justification. Follow the steps below:

• Write an objection on plain paper mentioning:
• Question number
• Paper set (A/B/C/D)
• Your suggested correct answer
• Justification with references (book/source page number)

1. Send the hard copy by Speed Post or Courier to:
2. Controller of Examinations, Bihar Public Service Commission, 15, Jawaharlal Nehru Marg, Bailey Road, Patna – 800001  
3. Ensure the objection reaches on or before a specified date given in the official notification.

Note: Objections without valid reasoning or proof will not be entertained. Email or online objection submission was not enabled for this cycle.

Download BPSC ASO Exam Date 2025 Notice PDF

Direct Link to Apply For BPSC ASO

Download BPSC ASO Notification PDF

How to Calculate BPSC Assistant Section Officer Exam Marks?

The BPSC ASO Preliminary Exam follows a clear marking scheme. Use the answer key to estimate your score with the following steps:

1. Match your responses with the correct answers from the official key.
2. For every correct answer, add +1 mark.
3. For every incorrect answer, deduct 0.25 mark.
4. No marks for unanswered questions.
5. Use this formula:

 Estimated Score = (No. of Correct Answers × 1) – (No. of Incorrect Answers × 0.25)

This gives you an approximate idea of your performance and helps you assess your chances before the official result is released.

BPSC Assistant Section Officer: Minimum Qualifying Marks

Though the official cut-off marks for 2025 are yet to be announced, the minimum qualifying thresholds based on previous trends are:

These are qualifying thresholds and not the final cut-offs. The actual cut-off will be based on overall performance, vacancies, and difficulty level.

We hope that this article on BPSC Assistant Section Officer 2025 helped you to understand all the details regarding the BPSC Assistant Section Officer examination. The candidates are suggested to apply as soon as the application window opens to avoid the last minute rush and start preparing immediately. Check out the Testbook App for study materials, mock tests and preparation guides.