Bihar Public Service Commission (BPSC) has released the official notification for the post of Bihar BPSC AES Recruitment 2025 under the Environment, Forest and Climate Change Department, Govt. of Bihar. A total of 17 vacancies are available.
The online application starts on 27 August 2025 and the last date to apply is 19 September 2025.
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Bihar BPSC AES Recruitment 2025 – Overview
| Organization | Bihar Public Service Commission (BPSC) |
|---|---|
| Post Name | Bihar BPSC AES Recruitment 2025 |
| Department | Environment, Forest and Climate Change Dept., Govt. of Bihar |
| Advt. No. | 88/2025 |
| Total Vacancies | 17 Posts |
| Job Category | State Govt. Job |
| Application Mode | Online |
| Online Application Start | 27 August 2025 |
| Last Date to Apply | 19 September 2025 |
| Exam Mode | Written Exam + Interview |
| Pay Scale | Level-6 (Initial Pay) |
| Official Website | www.bpsc.bih.nic.in |
Bihar BPSC AES 2025: Important Dates
| Events | Dates |
|---|---|
| Online Application Start | 27 August 2025 |
| Registration Last Date | 19 September 2025 |
| Fee Payment Last Date | 19 September 2025 |
| Admit Card Available | Notify Later |
| Exam Date | Notify Later |
Application Fee
| Category | Fee |
|---|---|
| All Candidates | ₹100/- |
| Additional Biometric Fee (if Aadhaar not provided) | ₹200/- |
| Payment Mode | Credit Card, Debit Card, Net Banking |
Age Limit (as on 01-08-2025)
| Category | Minimum Age | Maximum Age |
|---|---|---|
| General (Male) | 21 Years | 37 Years |
| Female (UR/BC/EBC) | 21 Years | 40 Years |
| SC/ST (Male & Female) | 21 Years | 42 Years |
Vacancy Details
Important Links
| Apply online | Click Here |
| Download Official Notification | Click Here |
| Download Official Syllabus | Click Here |
| Official Website | Click Here |
| Join Our Whatsapp Channel | Click Here |
Bihar BPSC AES Recruitment 2025
Bihar BPSC AES Recruitment 2025 under the Environment, Forest & Climate Change Department, Govt. of Bihar. The recruitment drive offers 17 vacancies. Online applications open 27 August 2025 and close 19 September 2025.
Highlights (Quick Info)
- Post: Bihar BPSC AES Recruitment 2025
- Department: Environment, Forest & Climate Change Dept., Govt. of Bihar
- Advt. No.: 88/2025
- Total Vacancies: 17
- Pay Level: Level-6 (Initial pay as per Bihar pay matrix)
- Selection: Written Exam + Interview
- Apply Mode: Online (bpsc.bih.nic.in)
Eligibility Criteria
Educational Qualification
- Bachelor’s Degree in Chemistry / Life Science / Environmental Science / Physics from a recognized University/Institution.
Selection Process
Exam of Bihar BPSC AES Recruitment 2025
- Written Examination – 200 marks, divided into two papers (each paper carries 100 questions).
- Interview – Final merit based on Written Exam + Interview.
Detailed syllabus & exam schedule will be notified by BPSC via the official website.
How to Apply (Step-by-Step)
- Visit bpsc.bih.nic.in and open Bihar BPSC AES Recruitment 2025 (Advt. 88/2025) application link.
- New Registration: enter basic details and verify mobile/email.
- Fill Application Form: personal, academic, and category details.
- Upload Documents: photo, signature, and ID (Aadhaar preferred).
- Pay Fee Online: confirm payment status in dashboard.
- Preview & Submit: download Application Form and Fee Receipt.
- Keep the application number safe for admit card & future reference.
Documents to keep ready
- Recent passport photo & signature (as per size/specs)
- Class 10 certificate (DOB proof)
- Graduation mark sheet/degree (required discipline)
- Category/Reservation certificate (if applicable)
- Valid Photo ID (Aadhaar preferred)
Bihar BPSC AES Recruitment 2025 – Exam Pattern
The selection process for Bihar BPSC AES Recruitment 2025 consists of two stages:
- Written Examination
- Interview
Written Examination Pattern
| Paper | Subject | No. of Questions | Marks | Duration |
|---|---|---|---|---|
| Paper I | General Studies / General Awareness (Environment, Science & Current Affairs focus) | 100 | 100 | 2 Hours |
| Paper II | Subject Specific (Chemistry / Life Science / Environmental Science / Physics – as per eligibility discipline) | 100 | 100 | 2 Hours |
| Total | – | 200 | 200 | 4 Hours |
- Each question carries 1 mark.
- Questions will be Objective Type (MCQ).
- There may be negative marking (to be confirmed in detailed syllabus/notification).
Interview
- Candidates who qualify the Written Exam will be called for the Interview.
- The interview will assess subject knowledge, personality, communication, and suitability for the post.
- Final merit will be prepared on the basis of Written Exam + Interview marks.
✅ Summary:
- Written Exam: 200 Marks (2 Papers, 100 Q each).
- Interview: Weightage (marks not specified in notification).
- Final Selection: Based on combined performance.
FAQ — Bihar BPSC AES Recruitment 2025
Q1 — What is Bihar BPSC AES Recruitment 2025 and how many vacancies are available?
A: The Bihar BPSC AES Recruitment 2025 is a state government recruitment drive conducted by the Bihar Public Service Commission (BPSC) to hire Assistant Environmental Scientists (AES) for the Environment, Forest & Climate Change Department. For 2025, the advertisement Advt. No. 88/2025 announces 17 vacancies distributed across categories (UR, SC, ST, EBC, BC, EWS). This recruitment follows a two-stage selection — Written Examination (two papers) and Interview. Candidates should always read the official BPSC notification PDF for exact vacancy breakup, reservation criteria and other statutory details because these can include horizontal reservations (PWD, Ex-Servicemen, women) and category-wise nuances.
Q2 — Who is eligible to apply? (detailed eligibility)
A: Basic eligibility typically includes:
- Educational Qualification of Bihar BPSC AES Recruitment 2025 : A Bachelor’s degree in Chemistry, Life Science, Environmental Science or Physics from a recognized university/institution. If you have an allied degree (e.g., Biotechnology, Microbiology), check the official notification — sometimes equivalent/related degrees are accepted.
- Age: As per notification (example here): minimum 21 years and maximum 37 years for General (male). Women and reserved categories often get age relaxations (e.g., female UR/BC/EBC up to 40 years, SC/ST up to 42 years). Always compute your age as on the cut-off date mentioned (for this drive it’s usually 01-08-2025).
- Nationality: Indian citizen (and any additional domicile/residency requirements will be in the notification).
- Other Conditions: Document proofs (degree, DOB certificate), no pending criminal cases, and medical fitness as required.
Pro tip: If you finished final year degree and results are pending, see the notification’s clause on provisional eligibility — many recruitments allow provisional degrees if final mark sheet is produced at document verification.
Q3 — What is the application fee and how to pay it?
A: The notified application fee is ₹100 for all candidates (confirm in official PDF). If a candidate does not provide Aadhaar during the online application process, an additional biometric fee (₹200) may be levied for identity verification — follow the exact instruction in the notification. Payment modes usually include credit/debit card, net banking, UPI or prescribed payment gateway options. Keep screenshot and fee receipt (transaction ID) after payment. If payment fails but amount is debited, immediately contact the payment gateway helpdesk and keep screenshots for dispute resolution. Also note: some categories (SC/ST/PwD) may be exempt; check the official rules.
Q4 — What is the selection process and weightage of Written Exam vs Interview?
A: Selection = Written Examination + Interview. The written exam is typically 200 marks divided into two papers (Paper I & Paper II), each of 100 marks (100 objective questions each). The commission calls qualified candidates for an interview/personality test. The official notification will mention the weightage of interview (e.g., written 85% + interview 15% — or simply aggregate marks). Always confirm weightage in the PDF. Final merit lists combine scaled marks from both stages and follow reservation & tie-breaking rules.
Q5 — Give the detailed exam pattern and timing for each paper.
A: Common pattern for Bihar BPSC AES Recruitment 2025 (as per the advertisement summary):
- Paper I: General Studies / General Awareness — 100 Q — 100 marks — 2 hours. Focus: Environment, Ecology, General Science, Current Affairs (national & Bihar), basic reasoning and aptitude.
- Paper II: Subject Specific — 100 Q — 100 marks — 2 hours. Questions based on core B.Sc. subjects (Chemistry / Life Sciences / Environmental Science / Physics) depending on candidate’s discipline.
- Total: 200 marks, 4 hours (2 × 2 hours).
Some points: Questions are objective type (MCQ). The notification will state if there is negative marking (commonly 0.25 or 0.33 per wrong answer) — prepare accordingly.
Q6 — What is the detailed syllabus for Paper I (General Studies)?
A: Paper I often covers:
- Environment & Ecology: Pollution types, environmental laws, climate change basics, biodiversity, conservation methods, environmental impact assessment (EIA), national & international environmental initiatives.
- General Science: Basics of biology, chemistry and physics relevant to environmental science (water cycle, atmospheric chemistry, soil science).
- Current Affairs: National and international events related to environment, science & technology, government schemes (esp. Bihar state schemes).
- General Awareness/Bihar GK: Geography, economy, polity of India and Bihar — administrative structure, major rivers, state schemes linked to environment.
- Elementary Aptitude/Reasoning: Data interpretation, basic arithmetic, graphs and tables as applicable.
Study tactic: Map topics to past BPSC papers and government environment syllabi (e.g., UPSC prelims environment topics are useful). Make revision notes and a current-affairs calendar for last 12 months.
Q7 — What is the detailed syllabus for Paper II (Subject Specific)?
A: Paper II is discipline specific. Typical topics by subject:
- Chemistry: Physical chemistry (thermodynamics, kinetics), inorganic (periodicity, coordination compounds), analytical methods, environmental chemistry (pollutants, water & air quality indices), instrumental methods.
- Life Science / Biology: Ecology, environmental microbiology, biodiversity, conservation biology, physiology basics, ecology modeling, applied ecology topics.
- Environmental Science: Ecosystems, pollution control technologies, environmental laws (e.g., Environment Protection Act), sampling & monitoring, EIA steps, solid & hazardous waste management, hydrology basics, GIS/remote sensing basics.
- Physics: Fundamentals relevant to environment like atmospheric physics, radiation physics, remote sensing principles, instrumentation, energy systems.
Action: Download/compile syllabus from BPSC PDF and match with your college notes; focus on applied environmental topics and problem solving.
Q8 — How should I prepare (12-week study plan & strategy)?
A: Sample 12-week plan (adjust to your current level):
Weeks 1–2: Gather resources, finalize syllabus, basic revision of undergrad subject (chem/biology/envsci).
Weeks 3–6: Paper II intensive — topicwise deep study + solved examples (3–4 hours/day).
Weeks 7–8: Paper I concentrated — environment GK, current affairs, Bihar GK (2–3 hours/day).
Week 9: Mock tests — full length (2 paper combo) under exam conditions.
Weeks 10–11: Improve weak areas, revision notes, more mocks and analyze mistakes.
Week 12: Quick revision, formula crib sheets, light mocks, relax before exam.
Daily routine: 4–6 hours focused study (mix of reading, notes, and practice). Weekly: 1 full-length mock and analysis. Use previous year papers & standard text books; join a study group for doubt clearing.
Q9 — Recommended books & online resources for BPSC AES preparation
A (short list):
- Environment & Ecology: “Environment” by Shankar IAS for basics, “Environmental Studies” by R. Rajagopalan.
- Chemistry: O.P. Tandon / P. Bahadur for fundamentals; environmental chemistry publications/articles for applied topics.
- Life Science: T.K. Ghose / NCERTs for basics, plus current journals for advanced ecology.
- Current Affairs: Monthly environment magazines, PIB, India Year Book, national dailies.
- Online: Free lecture series on environmental sciences, e-learning portals, official BPSC past papers.
Balance textbook learning with research papers and government reports (CPCB, MoEFCC reports) for applied knowledge.
Q10 — Is there negative marking? How should I attempt the paper?
A: The notification should explicitly state negative marking. If negative marking exists (commonly 0.25 per wrong), follow this approach: attempt high-confidence answers first, avoid blind guessing, and mark questions to revisit. Use time management — allocate 1 hour per paper for first pass (answering easy and medium questions), then use remaining time for tougher questions and review.
Q11 — What documents are required at the time of application & document verification?
A: Keep scanned & original copies of:
- Recent passport size photo & scanned signature (as per required pixel/KB size)
- Class X certificate (DOB proof)
- Graduation degree & mark sheets
- Category certificate (SC/ST/OBC/EBC/BC) where applicable — must be in prescribed format and valid
- PwD certificate (if applicable)
- Domicile/residency certificate (if required)
- Aadhaar card or other ID (PAN, Voter ID)
- Fee payment receipt / transaction id
Tip: Ensure scanned documents meet size & format restrictions (PDF/JPEG) before starting the online form.
Q12 — How to fill the online application correctly (common mistakes to avoid)?
A: Common errors: wrong DOB, mismatching name with ID, uploading incorrect file types, taking screenshot as photo that doesn’t meet size rules, paying fee but not finalizing submission, not noting application number. Avoid by reading instructions on BPSC portal carefully, previewing the application before final submit, and saving the final PDF and fee receipt.
Q13 — When and how will the Admit Card be released? What to do if it’s not available?
A: Admit cards are usually published on bpsc.bih.nic.in under “Admit Card/Recruitment” section. BPSC will list candidates who are allowed to appear based on application status & fee. If your admit card is not available: check application status (payment success, document uploads), ensure you applied before deadline, contact BPSC helpdesk with application number and payment proof. Keep multiple printouts of admit card and a valid original photo ID on exam day.
Q14 — How are cut-offs decided and how to estimate expected cut-offs?
A: Cut-offs depend on paper difficulty, number of vacancies, candidate performance, and reservation category. For a small vacancy count (17 posts), competition is high and cut-offs may be relatively high. Use previous BPSC/related exam cut-offs as a benchmark and monitor BPSC releases after the exam. For forecasting, track average marks in mock tests among peers.
Q15 — What happens during the Interview / Personality Test? How to prepare?
A: Interview evaluates subject depth, communication, analytical & practical environmental understanding, and fit for the role. Typical prep: revise core subjects, current affairs in environment, recent projects/papers, and be ready to explain thesis or project work. Practice common HR questions (strengths/weaknesses, why AES, scenario questions). Dress professionally, carry all certificates in original, and be concise and confident.
Q16 — If there is an error in the application after submission, how to correct it?
A: Many commissions provide a limited correction window — check the notification for correction dates and editable fields. For serious errors (DOB, name), contact BPSC immediately via their official helpdesk and follow instructions. Save email correspondence and payment receipts.
Q17 — How to get updates and official communication from BPSC?
A: Regularly check:
- Official website: bpsc.bih.nic.in
- Official recruitment/notifications page and “News/Events”.
- BPSC helpdesk email/phone (from notification).
- Official social handles (if any).
Don’t rely solely on third-party websites for critical deadlines — always refer to the official notification PDF and BPSC portal.
Q18 — What are common reasons for rejection/disqualification?
A: Common causes: incomplete form, wrong/forged documents, age ineligibility, not meeting educational criteria, mismatch in reservation certificates, multiple applications by same candidate, or attempting to bribe/cheat. Maintain transparency and accurate documents to avoid rejection.
Q19 — Post-selection: pay scale, probation & job posting details?
A: The pay level for AES is Level-6 (as per state pay matrix). Details about probation period, posting locations, and job responsibilities are provided in appointment order or service rules. Bihar BPSC AES Recruitment 2025 posts usually involve field inspections, environmental monitoring, report writing, program implementation and coordination with other departments.