Bihar APO Answer Key 2026 Out: How to Download PDF & Raise Objection?

The Bihar APO Final Answer Key 2026 is released by the Bihar Public Service Commission (BPSC) on 12 October 2026 for the Assistant Prosecution Officer.

• The Bihar APO Provisional Answer Key 2026 is released by Bihar Public Service Commission (BPSC) on 12 August 2026.
• The Bihar APO provisional answer key for prelims (held on July 15, 2026) has been released on August 12, 2026.   
• There are separate answer keys for Law and General Studies. Candidates can download it from bpsc.bihar.gov.in.      

Download Bihar APO 2026 Final Answer Key PDF

Download the subject-wise Bihar APO Final Answer key 2026 from the table below: 

Particulars	Download Link
Bihar APO Final Answer Key | Law	Download PDF
Bihar APO Final Answer Key | General Studies	Download PDF

Download the subject-wise Bihar APO Provisional Answer key 2026 from the table below: 

Particulars	Download Link
Bihar APO Provisional Answer Key | Law	Download PDF
Bihar APO Provisional Answer Key | General Studies	Download PDF

How to Download the Bihar APO 2026 Final Answer Key from the BPSC Website

• Go to bpsc.bihar.gov.in and open the "What's New" or notices section.
• Find the notices for "Advt. No. 13/2026, Prosecution Officer – Provisional Answer".
• Open the General Studies and Law PDFs separately.
• Save both files and note the series printed at the top (Series-M).

No roll number or password is needed to view the key. The candidate login on BPSC's online portal was required only for filing objections.

Bihar APO Answer Key 2026: Highlights

The Bihar APO exam 2026 (prelims) was conducted July 15, 2026. The Bihar APO Final Answer Key 2026 is released by the Bihar Public Service Commission (BPSC) on 12 October 2026 for the Assistant Prosecution Officer. .The BPSC has first released a provisional answer key that was open to objections. and the objection window remained open from August 14 to August 18, 2026.

Particular	Details
Conducting body	Bihar Public Service Commission (BPSC), Patna
Post	Assistant Prosecution Officer (APO), Home Department (Prosecution Directorate), Government of Bihar
Advertisement No.	13/2026
Vacancies	300
Prelims exam date	15 July 2026 (Paper I: General Studies, morning; Paper II: Law, afternoon)
Provisional answer key	12 August 2026
Answer key series	Series-M
Objection window	14 to 18 August 2026 (closed)
Official website	bpsc.bihar.gov.in

How to Calculate Your Marks Using the Bihar APO Answer Key 2026? 

BPSC APO Prelims applies 1/3rd negative marking for every wrong answer. While you may be tempted to count all the answers you've got right, remember this important detail.  

Here's an example to help you understand to calculate your marks using the answer key:  

Suppose you attempted 180 out of 250 questions across both papers. Say 140 are correct and 40 are wrong.  

• Correct answers: 140 × 1 = 140 marks 
• Wrong answers: 40 × (1/3) = 13.33 marks deducted 
• Net score: 140 − 13.33 = 126.67  

Always run this calculation before deciding whether you're safely through, borderline, or need to start planning for a re-attempt strategy alongside a backup exam cycle.  

Note: Whether or not you qualify in the Prelims depends on the Bihar APO cutoff set by the BPSC. 

Download Free Bihar APO Exam Study Material By Judiciary Gold

How to Raise an Objection Against the Bihar APO Answer Key 2026?

BPSC has declared that the objection window will open from August 14, 2026 to August 18, 2026. The process of raising an objection against the Bihar APO answer key 2026 is done online through your candidate dashboard, not by email or in person. Here's what you need to do:  

• Objections were filed online through the candidate login, not by post or email.
• Each objection named the question number, the answer the candidate believed was correct, and a supporting source such as a Bare Act provision, a court judgment or a standard textbook.
• A fee was charged per question.
• A committee of subject experts reviews the objections before the final key is prepared.

Note: The BPSC, charges ₹250 per question to raise an objection. You can check the fee for this year in its latest notification for objection.  

After BPSC's subject-expert committee reviews all objections, a final answer key is released. This is the version used to compute results. No further objections are accepted at this stage, regardless of how compelling your evidence is.  

What Happens After the Bihar APO 2026 Final Answer Key?

BPSC uses the final answer key to prepare the Prelims result, which lists the roll numbers of candidates who qualify for the Mains.

• Expert committee reviews all objections.
• BPSC publishes the final answer key. No further objections are accepted.
• The Prelims result is declared on bpsc.bihar.gov.in. Check the Bihar APO result 2026 page for the latest notice.
• Qualified candidates appear for the descriptive Mains.
• Mains is followed by an interview. The final merit list is based on Mains and interview marks; Prelims marks are used only for shortlisting.

Common Mistakes When Checking the Bihar APO Answer Key 

• Neglecting your booklet series - Matching a different series against the Series-M key gives a score that means nothing.
• Counting only correct answers - Leave out the deduction for wrong answers and your estimate will be too high.
• Using the provisional key as final - Questions can be revised or dropped after objections.
• Trusting forwarded PDFs - Use only the files on bpsc.bihar.gov.in; Telegram copies can be edited or outdated.
• Treating the Prelims score as your rank - Prelims only decides who reaches the Mains.

Download Free Criminal Law Notes for Bihar APO

What to Do While You Wait for the Results?

The time between the prelims and the Bihar APO result 2026 the is highest-leverage window most candidates waste. Mains have seven descriptive papers testing depth. The candidates who start early get an advantage over those who wait for the official result before opening a book again.  

Here's how to use this time practically for your benefit based on the Bihar APO syllabus:  

• Begin CPC and Constitutional Law concept-building. These carry heavy Mains weightage and take longest to internalize properly. 
• Revise the 3 new updated criminal law  (BNS, BNSS, BSA) alongside their predecessor Acts, since many state notifications still test both frameworks and examiners frequently draw comparative questions. 
• Start timed answer-writing practice. Mains is descriptive, and writing speed under time pressure is a skill that needs weeks, not days, to build. 
• Revisit Bihar APO previous year papers and comparable state prosecutor-exam Mains papers to understand question framing and expected answer depth.  

Should You Start You BPSC APO Mains Preparation or Wait? 

Candidates who have clearly assessed their performance and positive about their results can use the plan in the above section. If you are not sure, here's a simple way to decide, without waiting on us or anyone else to hand you a number:  

Situation	Suggestions
Net score comfortably above past cut-off trends for your category	Start Mains prep immediately; don't wait for the official result
Borderline, but strong on Law paper	Prepare for Mains while monitoring other upcoming notifications as backup
Below expected range, weak in one specific paper	Use this window to diagnose the gap; target the weak paper
Genuinely unsure how to self-assess	Get help from a mentor instead of guessing the next steps

Key Takeaways: Bihar APO Answer Key 2026

Check the Bihar APO Answer Key 2026 to evaluate your responses and estimate your preliminary exam score.

• The Bihar APO Final Answer Key 2026 is released by the Bihar Public Service Commission (BPSC) on 12 October 2026 for the Assistant Prosecution Officer. 
•  The Bihar APO Prelims Exam is qualifying in nature and does not determine candidates’ final ranks.
•  Candidates should consider the one-third negative marking while calculating their expected scores using the Bihar APO 2026 Final Answer Key.
•  To raise objections against the Bihar APO 2026 final answer key, candidates must provide valid supporting evidence and pay the prescribed objection fee.
• Candidates should utilise the waiting period effectively by beginning their Bihar APO Mains Exam 2026 Preparation instead of waiting for the preliminary examination results.