BPSC AES Final Answer Key 2026 is the latest update for candidates who appeared for the Assistant Environmental Scientist recruitment exam in Bihar. The Bihar Public Service Commission (BPSC) has released the final answer key on its official website for the posts advertised under Advertisement No. 88/2025. If you appeared in this examination, this article covers everything from the answer key download process to eligibility, salary and the complete selection process, all in one place.
Latest Update
- BPSC conducted the Assistant Environmental Scientist (AES) Written Examination on 11 June 2026.
- The admit card for this exam was released on 4 June 2026.
- The provisional/subject-wise answer keys, covering General Studies, Physics, Chemistry, Life Science and Environmental Science, were released on 7 July 2026, along with a notice inviting objections.
- BPSC has now released the Final Answer Key on the official website for Advt. No. 88/2025.
- Candidates can check the final answer key using their Enrollment Number, Registration Number, or Date of Birth by logging into the official portal.
- The BPSC AES Result 2026 will be prepared on the basis of this final answer key and the interview stage. For the exact result date, candidates are advised to check the official notification.
BPSC AES Recruitment Overview
The Bihar Public Service Commission released the Assistant Environmental Scientist recruitment notification under Advertisement No. 88/2025 for the Environment, Forest and Climate Change Department, offering 17 vacancies. Online applications were accepted from 27 August 2025 to 19 September 2025. This recruitment is a good opportunity for science graduates with a background in Environmental Science, Chemistry, Life Science or Physics who are looking for a technical government role in Bihar.
Important Highlights Table
| Particular | Details |
|---|---|
| Organization | Bihar Public Service Commission (BPSC) |
| Post Name | Assistant Environmental Scientist (AES) |
| Advertisement No. | 88/2025 |
| Total Vacancies | 17 Posts |
| Application Start Date | 27 August 2025 |
| Application Last Date | 19 September 2025 |
| Written Exam Date | 11 June 2026 |
| Admit Card Release | 4 June 2026 |
| Answer Key Release | 7 July 2026 (subject-wise), Final Key now released |
| Selection Process | Written Exam + Interview |
| Category | Sarkari Result, Answer Key |
| Official Website | bpsc.bihar.gov.in |
About BPSC AES Recruitment
The Bihar Public Service Commission is the state-level recruiting body responsible for filling technical and administrative posts under various departments of the Government of Bihar. Through Advertisement No. 88/2025, BPSC invited applications for the post of Assistant Environmental Scientist under the Environment, Forest and Climate Change Department, a role focused on monitoring environmental standards, pollution control support and related scientific assessment work for the state government.
A BPSC AES post offers long-term job security, a respectable pay scale, and the opportunity to contribute to Bihar’s environmental policy and monitoring work. For candidates with a science background in Environmental Science, Chemistry, Life Science or Physics, this recruitment is a valuable career opportunity in the state government’s technical cadre.
BPSC AES Vacancy Details 2026
| Post Name | No. of Post |
|---|---|
| Assistant Environmental Scientist (AES) | 17 |
BPSC has not published a detailed category-wise vacancy breakup in publicly available sources at the time of writing. Candidates are advised to check the official notification or advertisement PDF on bpsc.bihar.gov.in for the exact category-wise and reservation-wise vacancy distribution.
Important Dates
| Event | Date |
|---|---|
| Notification Release | August 2025 |
| Application Start Date | 27 August 2025 |
| Application Last Date | 19 September 2025 |
| Last Date for Fee Payment | 19 September 2025 |
| Admit Card Release | 4 June 2026 |
| Written Exam Date | 11 June 2026 |
| Subject-wise Answer Key | 7 July 2026 |
| Final Answer Key | Released – check official website for exact date |
| Result Date | Check official notification |
Eligibility Criteria
Educational Qualification
Candidates must hold a Bachelor’s Degree in Chemistry, Life Science, Environmental Science, or Physics from a recognized university or institution. For the exact qualification requirements, including any specialization or additional certification, candidates should refer to the official notification.
Age Limit
The minimum age for all categories is 21 years, as reckoned on 1 August 2025. The maximum age limit is 37 years for General category male candidates, 40 years for Unreserved category female candidates and for Backward Class/Extremely Backward Class male and female candidates, and 42 years for SC/ST male and female candidates. BPSC provides additional age relaxation as per Bihar government rules.
Application Fee
| Category | Fee |
|---|---|
| All Candidates | Rs. 100/- |
The application fee could be paid online through Debit Card, Credit Card, Internet Banking, IMPS, or Cash Card/Mobile Wallet.
Salary Details
| Particular | Details |
|---|---|
| Pay Commission | 7th Pay Commission, Bihar Government |
| Pay Matrix Level | Level-6 |
| Allowances | HRA, medical benefits and other government allowances |
| Other Benefits | Job security, pension benefits and government employee perks |
Selected candidates will be placed in Pay Matrix Level-6 as per the 7th Pay Commission, Bihar Government. Along with the fixed monthly pay, selected candidates are also entitled to House Rent Allowance (HRA), medical benefits and other standard government employee perks.
How To Apply Online
The online application window for BPSC AES 2025-26 has already closed. For future BPSC recruitment cycles, candidates can generally follow these steps:
- Visit the official BPSC website at bpsc.bihar.gov.in.
- Go to the “Latest Advertisement” or “Recruitment” section on the homepage.
- Click on “Apply Online” under the relevant advertisement.
- Register using your basic details to generate a login ID and password.
- Fill in the online application form with personal, educational and category details.
- Upload scanned photograph, signature and required documents as per specifications.
- Pay the application fee through the available online payment mode.
- Review the filled application form carefully before final submission.
- Submit the form and download a copy of the confirmation page for future reference.
BPSC AES Selection Process 2026
Selection for the post of Assistant Environmental Scientist under BPSC Advt. No. 88/2025 is based on two stages. Candidates need to clear both stages to be considered for the final merit list.
- Written (Objective) Examination – Two papers testing General Studies and the candidate’s technical subject.
- Interview – A personal interview of 50 marks for candidates who qualify the written exam.
The final merit list is prepared by combining the marks obtained in the written examination and the interview. There is no separate document verification or medical examination stage mentioned in the publicly available notification details, so candidates should confirm the complete process from the official advertisement.
BPSC AES Exam Pattern 2026
| Particular | Details |
|---|---|
| Exam Mode | Offline (Pen and Paper) |
| Question Type | Objective (Multiple Choice) |
| Number of Papers | 2 (Paper I and Paper II) |
| Paper I | General Studies – 100 Questions, 2 Hours |
| Paper II | Technical Subject (Environmental Science / Physics / Chemistry / Life Science) – 100 Questions, 2 Hours |
| Negative Marking | 1/3 mark deducted for each wrong answer |
| Interview | 50 Marks |
The technical paper is based on the candidate’s qualifying subject, and BPSC has released subject-wise answer keys separately for General Studies, Physics, Chemistry, Life Science and Environmental Science. Candidates should check the answer key that matches their own subject combination. Since incorrect answers carry a penalty, candidates are advised to attempt only those questions they are reasonably confident about.
BPSC AES Syllabus 2026
The BPSC AES Syllabus is divided into a General Studies section and a technical subject section based on the candidate’s academic background. Here is a subject-wise breakdown to help you plan your preparation.
1. General Studies
This section covers current affairs, general awareness, reasoning, and environment-related current developments at the national and Bihar state level.
2. Environmental Science
This part covers Pollution Control, Environmental Laws, Waste Management, and Sustainable Development, along with ecology and environmental impact assessment topics.
3. Physics (For Physics Background Candidates)
This section includes Thermodynamics, Mechanics, Electricity and Magnetism, and Environmental Physics.
4. Chemistry (For Chemistry Background Candidates)
This section covers core Chemistry topics along with environmental chemistry concepts such as water and air quality analysis, and pollutant chemistry.
5. Life Science (For Life Science Background Candidates)
This section covers core biology topics along with ecology, biodiversity, and environmental biology relevant to the candidate’s academic background.
For the exact, detailed topic-wise syllabus, candidates are advised to download the official syllabus PDF from the BPSC website, since the depth of coverage may vary by subject.
Physical Eligibility
The BPSC AES recruitment does not include a Physical Efficiency Test (PET) or Physical Standard Test (PST). Selection is based only on the Written Exam and the Interview. If any physical or medical standards apply, candidates should check the official notification for confirmation.
Documents Required
- Bachelor’s degree marksheet and certificate (Chemistry / Life Science / Environmental Science / Physics)
- Matriculation and Intermediate certificates for age and educational proof
- Category certificate (SC/ST/BC/EBC/EWS), if applicable
- Age proof document (Matriculation certificate or birth certificate)
- Valid photo ID proof (Aadhaar Card, Voter ID, etc.)
- Recent passport-size photograph and signature
- Admit card of the written examination
- Domicile certificate, if required by BPSC
Preparation Strategy for BPSC AES
Since the written exam tests both general awareness and in-depth technical knowledge, a balanced study plan across both papers is important to secure a good overall score. Here are a few practical tips to help you prepare better.
- Revise Bihar-specific general knowledge along with national and environment-related current affairs on a regular basis.
- Give equal importance to your technical subject paper, since it carries the same weightage as the General Studies paper.
- Focus on core Environmental Science topics such as pollution control, environmental laws and sustainable development, regardless of your academic background.
- Practice previous year BPSC-pattern objective papers to understand the question style and difficulty level.
- Since negative marking applies, avoid guesswork and attempt only the questions you are confident about.
- Prepare well for the interview stage by staying updated on current environmental policies and issues relevant to Bihar and India.
Important Instructions
- Always download the final answer key and result only from the official BPSC website.
- Keep your enrollment number, registration number and date of birth ready before logging in.
- Cross-check every answer carefully before relying on any unofficial score calculation.
- Do not share your login credentials or OTP with anyone.
- Keep a printout of your application form, admit card and answer key for future reference.
- Regularly visit the official website for updates on result and interview schedule.
Official Important Links
| Activity | Official Link |
|---|---|
| Download Final Answer Key | Click Here |
| Answer Key – General Studies | Click Here |
| Answer Key – Physics | Click Here |
| Answer Key – Chemistry | Click Here |
| Answer Key – Life Science | Click Here |
| Answer Key – Environmental Science | Click Here |
| Objection Notice | Click Here |
| Download Admit Card | Click Here |
| Download Official Notification | Click Here |
| BPSC Official Website | Click Here |
Note: Candidates should download the answer key matching their own technical subject (Physics, Chemistry, Life Science, or Environmental Science), along with the common General Studies answer key.
Useful Links
- Result2Day Homepage
- Join Our WhatsApp Channel
- Follow on Instagram
- Give Free Mock Test
- Free Tools for Students
- All in One Calculator Page
Conclusion
The BPSC AES Final Answer Key 2026 marks an important milestone for all candidates who appeared in the Advt. No. 88/2025 written examination held on 11 June 2026. This recruitment for 17 Assistant Environmental Scientist posts offers a meaningful technical career under the Bihar government’s Environment, Forest and Climate Change Department, along with a Level-6 pay scale and standard government benefits. With the final answer key now released, the next major update will be the BPSC AES Result and the interview call letters for shortlisted candidates.
Candidates who appeared in this exam should download and verify their final answer key carefully, keep all required documents ready for the interview stage, and stay updated on current environmental policies and issues. Since BPSC does not usually reopen the objection window after the final key is released, aspirants should also start preparing for the interview without waiting for the result announcement. Above all, always rely on the official BPSC website, bpsc.bihar.gov.in, for the most accurate and updated information regarding this recruitment.
Frequently Asked Questions (FAQs)
Q1. Has the BPSC AES Final Answer Key 2026 been released?
Yes, BPSC has released the final answer key for Advt. No. 88/2025 on its official website, covering General Studies and all four technical subjects.
Q2. Under which advertisement number was the BPSC AES exam conducted?
The exam was conducted under Advertisement No. 88/2025 for 17 Assistant Environmental Scientist vacancies.
Q3. When was the BPSC AES written exam held?
The BPSC AES Written Examination was conducted on 11 June 2026.
Q4. How can I download the BPSC AES Final Answer Key 2026?
Visit bpsc.bihar.gov.in, open the notice related to Advt. No. 88/2025, and download the answer key PDF matching your technical subject along with the General Studies key.
Q5. Is there negative marking in the BPSC AES exam?
Yes, 1/3rd of the marks assigned to a question is deducted for every wrong answer in both papers.
Q6. What is the selection process for BPSC AES 2026?
Selection is based on two stages: a Written Examination consisting of General Studies and a technical subject paper, followed by a Personal Interview of 50 marks.
Q7. What is the exam pattern for BPSC AES 2026?
The written exam has two papers of 100 questions each, with a duration of 2 hours per paper: Paper I is General Studies and Paper II is the candidate’s technical subject.
Q8. What is the salary of a BPSC Assistant Environmental Scientist?
Selected candidates are placed in Pay Matrix Level-6 as per the 7th Pay Commission, Bihar Government, along with HRA, medical benefits and other allowances.
Q9. What is the age limit for BPSC AES 2026?
The minimum age is 21 years. The maximum age is 37 years for General category males, 40 years for Unreserved category females and BC/EBC male and female candidates, and 42 years for SC/ST male and female candidates.
Q10. When will the BPSC AES Result 2026 be declared?
The result will be prepared on the basis of the final answer key and the interview stage. For the exact result date, candidates should regularly check the official BPSC website.

