BTSC Fishery Extension Officer Recruitment 2026: 308 Vacancies, Eligibility, Age Limit, Salary, Exam Pattern & Apply Online
The Bihar Technical Service Commission (BTSC) has released Advertisement No. 28/2026 for the recruitment of Fishery Extension Officer (मत्स्य प्रसार पदाधिकारी) under the Department of Dairy, Fisheries and Animal Resources, Government of Bihar.
Eligible Indian citizens can apply online for the post through the official BTSC website. The online application process is scheduled to begin on 24 September 2026, and candidates can submit their applications up to 23 October 2026.
A total of 308 vacancies have been mentioned in the recruitment advertisement. Candidates applying for the post must have a four-year Bachelor’s Degree in Fisheries Science from an eligible/recognized institution as prescribed in the advertisement.
BTSC Fishery Extension Officer Recruitment 2026 – Overview
| Particulars | Details |
|---|---|
| Recruiting Organization | Bihar Technical Service Commission (BTSC) |
| Department | Department of Dairy, Fisheries and Animal Resources, Bihar |
| Post Name | Fishery Extension Officer |
| Hindi Post Name | मत्स्य प्रसार पदाधिकारी |
| Advertisement No. | 28/2026 |
| Total Vacancies | 308 Posts |
| Pay Level | Level-7 |
| Application Mode | Online |
| Application Start Date | 24 September 2026 |
| Last Date to Apply | 23 October 2026 |
| Minimum Age | 21 Years |
| Maximum Age | 37–42 Years, Category-wise |
| Application Fee | ₹100 |
| Selection Process | Written Competitive Examination + Work Experience |
| Examination Mode | Computer Based Test (CBT) |
| Total Questions | 100 |
| Maximum Marks | 100 |
| Exam Duration | 2 Hours |
| Negative Marking | 0.25 Marks for Each Wrong Answer |
| Official Website | https://btsc.bihar.gov.in/ |
BTSC Fishery Extension Officer Vacancy 2026
The BTSC recruitment notification contains 308 vacancies for the post of Fishery Extension Officer.
The vacancies are distributed among different reservation categories according to the roster information mentioned in the recruitment advertisement. The advertisement also contains provisions regarding 35% horizontal reservation for women who are permanent residents of Bihar, subject to the applicable rules.
Category-Wise Vacancy Details
| Category | Vacancies | Women Reservation Details |
|---|---|---|
| Unreserved (UR) | 96 | 34 |
| Economically Weaker Section (EWS) | 23 | 08 |
| Scheduled Caste (SC) | 35 | 12 |
| Scheduled Tribe (ST) | 02 | 00 |
| Extremely Backward Class (EBC) | 41 | 14 |
| Backward Class (BC) | 27 | 09 |
| Backward Class Women | 07 | — |
| Total | 231 | 77 |
| Total Vacancies | 308 | — |
Important: The number of vacancies may be increased or decreased depending on additional requisitions received from the concerned department and subsequent amendments to the recruitment process.
Post Name and Pay Scale
Post: Fishery Extension Officer
The selected candidates will be appointed under the Department of Dairy, Fisheries and Animal Resources, Government of Bihar, under the Fisheries Directorate and subordinate offices.
The post carries Pay Level-7 as prescribed in the recruitment advertisement.
Educational Qualification
Candidates applying for the Fishery Extension Officer post must possess the educational qualification prescribed in Advertisement No. 28/2026.
The required qualification is:
A four-year Bachelor’s Degree in Fisheries Science from a Fisheries College under an Agricultural University recognized by the Indian Council of Agricultural Research (ICAR), New Delhi, as prescribed in the recruitment advertisement.
Candidates should carefully verify their degree, institution and recognition status before submitting the online application.
BTSC Fishery Extension Officer Age Limit 2026
The age of the candidate will be calculated with reference to 01 August 2026, as prescribed in the recruitment advertisement.
| Category | Maximum Age |
|---|---|
| Unreserved Male | 37 Years |
| Unreserved Female | 40 Years |
| BC/EBC Male & Female | 40 Years |
| SC/ST Male & Female | 42 Years |
| Minimum Age | 21 Years |
The date of birth mentioned in the candidate’s Matriculation or equivalent certificate will be considered for determining the age.
Age Relaxation
The recruitment advertisement provides for age relaxation for eligible categories according to the applicable Bihar Government rules.
Provisions are also mentioned for eligible:
- Persons with Benchmark Disabilities
- Ex-servicemen
- Regular employees of the Bihar Government
- Eligible contractual employees
- Other categories covered under the applicable recruitment rules
Candidates claiming age relaxation must possess the required supporting certificates.
Application Fee
The application fee mentioned for the recruitment is ₹100.
| Particular | Fee |
|---|---|
| Online Application Fee | ₹100 |
The fee is to be paid through the online payment facility available during the application process.
Candidates may use the payment methods provided by the online application portal, such as:
- Debit Card
- Credit Card
- Internet Banking
- UPI
Any additional transaction or bank charges, if applicable, will be borne by the candidate.
Photo ID Details
Candidates are required to provide details of a valid photo identity document while submitting the online application.
The advertisement gives preference to providing the Aadhaar Card Number.
Where Aadhaar is not available, candidates may provide details of another valid photo identity document, such as:
- PAN Card
- Driving Licence
- Other valid Photo ID
The candidate should keep the same identity document available for subsequent stages of the recruitment process wherever required.
BTSC Fishery Extension Officer Selection Process
The selection process will be based on a Written Competitive Examination and eligible work experience, as prescribed in the recruitment advertisement.
Marks Distribution
| Selection Component | Maximum Marks |
|---|---|
| Written Competitive Examination | 75 Marks |
| Eligible Work Experience | 25 Marks |
| Total | 100 Marks |
The written examination carries a weightage of 75 marks, while eligible work experience can contribute up to 25 marks.
How Written Exam Marks Will Be Calculated
The advertisement provides that the percentage obtained in the written examination will be converted into 75 marks using the prescribed formula.
For example:
If a candidate obtains 60% marks in the written examination:
60 × 0.75 = 45 marks
Therefore, the candidate would receive 45 marks out of 75 for the written examination component.
Work Experience Marks
Eligible work experience will be considered for candidates who qualify in the written competitive examination, subject to the conditions mentioned in the recruitment advertisement.
Experience gained on a contractual basis in the relevant/same post in eligible government or non-private institutions, including applicable Central Government, Panchayat or Municipal institutions, may be considered according to the prescribed rules.
A maximum of 25 marks can be awarded for eligible work experience.
The work experience will be calculated up to 24 September 2026, as prescribed in the advertisement.
Work Experience Certificate
Candidates claiming work experience must submit the required Salary Payment Certificate/Work Experience Certificate in the prescribed format.
The certificate must be issued by the competent authority.
The advertisement provides a prescribed format under Appendix-I for the relevant certificate.
Candidates should note that:
- Work experience must be claimed in the application.
- The prescribed certificate must be available.
- A certificate in an incorrect or non-prescribed format may not be accepted for awarding experience marks.
- If the candidate does not claim work experience in the application, the benefit of experience marks may not be available.
- Applicable age relaxation linked to work experience will also depend upon the conditions prescribed in the advertisement.
BTSC Fishery Extension Officer Exam Pattern 2026
The written examination will be conducted through Computer Based Test (CBT) mode.
| Exam Particular | Details |
|---|---|
| Examination Mode | Computer Based Test (CBT) |
| Total Questions | 100 |
| Question Type | Objective Multiple Choice Questions |
| Maximum Marks | 100 |
| Exam Duration | 2 Hours |
| Correct Answer | +1 Mark |
| Wrong Answer | -0.25 Mark |
| Minimum Qualifying Marks | 30% |
| Examination Language | Hindi & English |
| Examination Shifts | One or More Shifts, if required |
Negative Marking
Negative marking will be applicable in the written examination.
- Correct Answer: +1 mark
- Incorrect Answer: -0.25 mark
Candidates should therefore read each question carefully before selecting an answer.
Normalization of Marks
If the examination is conducted in more than one shift, the examination authority may apply a normalization process to account for differences in the difficulty level of question papers across different shifts.
The normalized score will be used as prescribed by the Commission for further stages of the recruitment process.
BTSC Fishery Extension Officer Syllabus
The examination syllabus for the Fishery Extension Officer post will be based on the syllabus prescribed by the requisitioning department.
The detailed syllabus is to be made available/published through the Commission’s official website as per the recruitment process.
Candidates should follow the official syllabus released by BTSC rather than relying only on unofficial syllabus information available elsewhere.
Document Verification
Candidates who obtain the required qualifying marks in the written competitive examination and fall within the relevant merit list will be called for Document Verification.
Candidates will have to produce their original documents along with the required copies/details during the verification process.
Documents Required
Candidates should keep the following documents ready, wherever applicable:
- Matriculation/10th Certificate
- Marksheets of the required educational qualification
- Original Degree Certificate or Provisional Certificate
- Caste Certificate
- Non-Creamy Layer Certificate, wherever applicable
- EWS Certificate, wherever applicable
- Residential/Domicile Certificate
- Disability Certificate, wherever applicable
- Freedom Fighter Dependent Certificate, wherever applicable
- Ex-Serviceman Certificate, wherever applicable
- Prescribed Salary Payment/Work Experience Certificate
- Valid Photo Identity Proof
- Other documents mentioned by BTSC during document verification
Candidates should ensure that the information entered in the online application matches their original documents.
Reservation Details
The recruitment advertisement provides reservation provisions for various categories, including:
- Scheduled Caste (SC)
- Scheduled Tribe (ST)
- Extremely Backward Class (EBC)
- Backward Class (BC)
- Economically Weaker Section (EWS)
- Backward Class Women (BC Women)
- Women under horizontal reservation
- Persons with Benchmark Disabilities
- Eligible dependents of freedom fighters
- Other categories as applicable under the recruitment rules
Candidates claiming reservation must possess valid certificates issued by the competent authority.
For BC/EBC candidates, the applicable Non-Creamy Layer Certificate requirements must also be fulfilled wherever prescribed.
Reservation for Women
The advertisement provides for 35% horizontal reservation for women who are permanent residents of Bihar, subject to the applicable rules and conditions.
Women candidates should carefully select the appropriate category and reservation option while completing the online application.
The benefit of reservation will be subject to verification of the required documents.
Reservation for Persons with Disabilities
The vacancy details include horizontal reservation provisions for eligible Persons with Benchmark Disabilities.
The advertisement refers to categories including:
- VH – Visually Impaired
- HH – Hearing Impaired
- OH – Orthopedically Handicapped
- Other applicable disability/multiple disability categories
Candidates claiming disability reservation must possess a valid disability certificate issued by the competent authority.
The Commission may also conduct medical verification through an authorized medical board where required.
Freedom Fighter Dependent Reservation
The recruitment advertisement provides a provision for 2% horizontal reservation for eligible descendants/dependents of freedom fighters receiving pension under the applicable Government provisions.
Candidates claiming this benefit must submit the required certificate in the prescribed format issued by the competent authority.
Important Dates
| Event | Date |
|---|---|
| Advertisement No. 28/2026 | 24 September 2026 |
| Online Application Begins | 24 September 2026 |
| Last Date to Apply Online | 23 October 2026 |
| Written Examination Date | To Be Announced |
| Admit Card Release | To Be Announced |
| Document Verification | To Be Announced |
| Final Result | To Be Announced |
How to Apply Online for BTSC Fishery Extension Officer Recruitment 2026?
Eligible candidates can submit the application online through the official BTSC website.
Step 1: Visit the Official Website
Go to the official Bihar Technical Service Commission website:
Step 2: Open the Recruitment Section
Find the recruitment/online application section on the BTSC website.
Step 3: Select Advertisement No. 28/2026
Look for the notification/application link for:
Fishery Extension Officer – Advertisement No. 28/2026
Step 4: Complete Registration
Enter the required personal information and complete the registration process.
Step 5: Fill in the Application Form
Enter:
- Personal details
- Educational qualification
- Category details
- Residential details
- Work experience
- Photo ID details
- Other required information
Step 6: Upload Documents
Upload the required photograph, signature and supporting documents in the prescribed format and size.
Step 7: Pay the Application Fee
Pay the prescribed ₹100 application fee through the available online payment options.
Step 8: Submit the Form
Review all information carefully and submit the application form.
Step 9: Save the Application
Download and save the final submitted application form and payment receipt for future reference.
Important Instructions for Candidates
Before submitting the application, candidates should carefully read the complete recruitment advertisement.
Important points include:
- Enter your name and date of birth exactly as mentioned in your educational documents.
- Select the correct category.
- Keep valid reservation certificates ready.
- Claim work experience only when you have the required prescribed certificate.
- Ensure that uploaded documents are clear and readable.
- Keep the registered mobile number and email ID active.
- Keep a copy of the submitted application form.
- Save the fee payment receipt.
- Do not wait until the last date to submit the application.
- Check the official BTSC website regularly for examination, syllabus, admit card and other updates.
Frequently Asked Questions (FAQs)
1. How many vacancies are available in BTSC Fishery Extension Officer Recruitment 2026?
A total of 308 vacancies have been mentioned for the Fishery Extension Officer post under Advertisement No. 28/2026.
2. What is the last date to apply for BTSC Fishery Extension Officer Recruitment 2026?
The last date to submit the online application is 23 October 2026.
3. What is the educational qualification for Fishery Extension Officer?
Candidates must have the prescribed four-year Bachelor’s Degree in Fisheries Science from an eligible/recognized institution as specified in the recruitment advertisement.
4. What is the age limit for BTSC Fishery Extension Officer?
The minimum age is 21 years. The maximum age varies by category, with the general upper age limit beginning at 37 years and applicable relaxations for eligible categories.
5. What is the application fee?
The prescribed online application fee is ₹100.
6. What is the BTSC Fishery Extension Officer exam pattern?
The written examination consists of 100 objective questions for 100 marks, with a duration of 2 hours. There is a negative marking of 0.25 marks for each wrong answer.
7. How many marks are awarded for work experience?
Eligible work experience can carry up to 25 marks, subject to the conditions and prescribed certificate requirements mentioned in the recruitment advertisement.
8. What is the selection process?
Selection is based on the written competitive examination and eligible work experience, as prescribed by BTSC.
9. When will the BTSC Fishery Extension Officer exam be conducted?
The examination date is to be announced by the Bihar Technical Service Commission through its official website.
10. Where can candidates apply online?
Candidates should apply through the official Bihar Technical Service Commission website:
Important Links
| Purpose | Link |
|---|---|
| BTSC Official Website | https://btsc.bihar.gov.in/ |
| Online Application | Visit the official BTSC website |
| Official Advertisement | Available through the BTSC recruitment section |
| Admit Card | To be released by BTSC |
| Examination Date | To be announced |
| Result | To be announced |
Final Note
BTSC Fishery Extension Officer Recruitment 2026 is being conducted under Advertisement No. 28/2026 for 308 posts. The online application process begins on 24 September 2026 and the last date to apply is 23 October 2026.
Candidates should carefully check their educational qualification, age, category, work experience and required certificates before submitting the application. The examination will be conducted through CBT mode and will contain 100 objective questions for 100 marks, with a 0.25-mark negative marking for each incorrect answer.
Candidates are advised to rely on the official BTSC notification and website for any subsequent changes, examination dates, syllabus, admit card, document verification and final result updates.
Official Website: https://btsc.bihar.gov.in/