The Central Pollution Control Board (CPCB) has published the Answer Key Notice for the written examination conducted for multiple posts including Scientist B, MTS, Data Entry Operator, LDC, Assistant, and others. The exam took place on 21st and 22nd June 2025 across various centers.
Candidates who appeared in the exam can now download the provisional answer key from the official website. To access the answer key, you’ll need to log in using your Registration Number, Date of Birth, or Enrollment Number.
CPCB Recruitment 2025 Exam Dates & Answer Key Release
Here are all important dates from the application to answer key release. Candidates should stay updated for upcoming result announcements.
| Event | Date |
|---|---|
| Application Start Date | 07 April 2025 |
| Application Last Date | 28 April 2025 |
| Fee Payment Deadline | 28 April 2025 |
| Admit Card Release | 10 June 2025 |
| Exam Dates | 21–22 June 2025 |
| Answer Key Release | 16 July 2025 |
| Result Date | To be announced soon |
CPCB Exam Fee 2025 – One Hour & Two Hour Test Structure
The exam fee is divided based on the duration of the test. Reserved categories and female candidates are given fee relaxation.
For 1-Hour Test:
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General/OBC/EWS: ₹500
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SC/ST/Female: ₹150
For 2-Hour Test:
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General/OBC/EWS: ₹1000
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SC/ST/Female: ₹250
Accepted Payment Modes: Debit/Credit Card, Net Banking, IMPS, Wallet
CPCB Recruitment 2025 – Age Limit Criteria by Post
CPCB has clearly defined age eligibility based on the type of post applied for. Minimum age across all categories is 18 years.
| Post Type | Maximum Age |
|---|---|
| Most Posts | 27 Years |
| Assistant Law Officer, Sr. Assistant, Accounts Assistant, etc. | 30 Years |
| Scientist B | 35 Years |
CPCB Vacancy 2025 – Post-wise Eligibility & Total Posts
This recruitment includes 69 vacancies across 18+ job roles. Each post requires specific educational qualifications and experience.
| Post | Vacancies | Qualification |
|---|---|---|
| Scientist B | 22 | Engineering or PG in Env. Science |
| Assistant Law Officer | 1 | LLB with experience |
| Sr. Technical Supervisor | 2 | B.Tech in Instrumentation + 3 yrs |
| Sr. Scientific Assistant | 4 | PG in Science |
| Technical Supervisor | 5 | Degree + experience |
| Assistant | 4 | Graduation + typing |
| Accounts Assistant | 2 | B.Com + experience |
| Junior Translator | 1 | PG + diploma in translation |
| Draughtsman | 1 | Degree in Civil Engg. + 3 yrs |
| Jr. Technician | 2 | Diploma in Electronics |
| Sr. Lab Assistant | 2 | 12th (Science) + experience |
| UDC | 8 | Graduation + typing |
| DEO | 1 | 12th + 8000 key depressions/hr |
| Steno | 3 | 12th + dictation + transcription |
| Jr. Lab Assistant | 2 | 12th (Science) |
| LDC | 5 | 12th + typing |
| Field Attendant | 1 | 10th pass |
| MTS | 3 | 10th/ITI in relevant trade |
Follow these steps to access the CPCB Answer Key and calculate your estimated score.
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Visit https://cpcb.nic.in
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Go to the “Recruitment” or “Results” section
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Click on “CPCB Various Posts Answer Key 2025”
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Log in with Registration Number / DOB
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Download the Answer Key PDF
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Compare your answers and calculate your marks
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If needed, raise objections within the deadline
Objection Process for CPCB Answer Key 2025
Candidates can challenge any question in the provisional answer key. The objection form and process will be available on the same portal.
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Objection window usually stays open for 2–3 days
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Objection fee (if applicable) must be paid
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Final answer key will be released after evaluation
CPCB Selection Process 2025 – Exam, Interview & Document Check
CPCB follows a multi-stage selection process depending on the post.
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Written Exam (Objective or Descriptive)
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Skill Test/Typing Test (for relevant posts)
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Interview / Viva-Voce (for higher-level posts)
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Document Verification
Only those who qualify the written exam will be called for further stages.
CPCB Answer Key 2025 – Important Links
Download Answer Key |
Click HereLink Activate On 16 July 2025 |
Check Answer Key Notice |
Click Here |
Download Admit Card |
Click Here |
Download Exam Date Notice |
Click Here |
Apply Online Link |
Click Here |
CPCB Official Website |
Click Here |
FAQs – CPCB Various Post Answer Key 2025
The provisional answer key was released on 16 July 2025 for exams held on 21–22 June 2025.
There are a total of 69 vacancies across various positions including Scientist B, MTS, DEO, LDC, and more.
Yes, candidates can raise objections within the time window mentioned in the notice. A nominal fee may be applicable.
Depending on the post, candidates may have to go through a skill test, interview, or direct document verification after the written exam.
