The Bihar Technical Service Commission (BTSC) has released Advertisement No. 28/2026 for regular appointment to the post of Fishery Extension Officer (मत्स्य प्रसार पदाधिकारी) under the fisheries establishment of the Government of Bihar.
A total of 231 vacancies have been announced. The post carries Pay Matrix Level-7, and candidates must have a four-year Bachelor’s Degree in Fisheries Science (B.F.Sc.) from an eligible ICAR-recognized institution.
Online applications are scheduled from 24 September 2026 to 23 October 2026. This guide covers eligibility, vacancies, age limit, salary, selection process, CBT pattern, experience marks, documents and the application process.
BTSC Fishery Extension Officer Recruitment 2026 – Quick Overview
| Particular | Details |
|---|---|
| Recruiting Organization | Bihar Technical Service Commission (BTSC) |
| Department | Dairy, Fisheries & Animal Resources Department, Government of Bihar |
| Post Name | Fishery Extension Officer / मत्स्य प्रसार पदाधिकारी |
| Advertisement No. | 28/2026 |
| Total Vacancies | 231 |
| Appointment Type | Regular Appointment |
| Essential Qualification | Four-year Bachelor’s Degree in Fisheries Science (B.F.Sc.) from an ICAR-recognized Agricultural University |
| Pay Level | Level-7 |
| Minimum Age | 21 Years |
| Age Cut-off Date | 01 August 2026 |
| Application Mode | Online |
| Application Start Date | 24 September 2026 |
| Last Date to Apply | 23 October 2026 |
| Application Fee | ₹100 |
| Selection Basis | CBT + Eligible Work Experience + Document Verification |
| Job Location | Bihar |
The vacancy, qualification, age, pay-level and application details are based on the uploaded Advertisement No. 28/2026 and the current BTSC recruitment listing.
BTSC Fishery Extension Officer Vacancy 2026
The recruitment has 231 vacancies for Fishery Extension Officer.
The category-wise roster shown in the notification is:
| Category | Vacancies |
|---|---|
| Unreserved (UR) | 96 |
| Economically Weaker Section (EWS) | 23 |
| Scheduled Caste (SC) | 35 |
| Scheduled Tribe (ST) | 02 |
| Extremely Backward Class (EBC) | 41 |
| Backward Class (BC) | 27 |
| Backward Class Women (WBC) | 07 |
| Total | 231 |
The notification also provides for 35% horizontal reservation for native/resident women of Bihar, as applicable under the stated reservation provisions. The notification explains that the women-reservation figures are within the overall category-wise vacancies rather than additional vacancies.
BTSC Fishery Extension Officer Eligibility 2026
Educational Qualification
Candidates must possess a four-year Bachelor’s Degree in Fisheries Science.
The qualification specified in the notification is essentially:
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.
Therefore, candidates with unrelated graduation degrees should not treat a general bachelor’s degree as sufficient for this post.
Qualification Self-Check
Before applying, verify:
- Your degree is B.F.Sc./Bachelor’s Degree in Fisheries Science.
- The course duration is four years.
- The Fisheries College is under an Agricultural University.
- The Agricultural University is recognized by ICAR, New Delhi.
- Your qualification documents are available for verification.
BTSC Fishery Extension Officer Age Limit 2026
The age is calculated as on 01 August 2026.
| Candidate Category | Minimum Age | Maximum Age |
|---|---|---|
| Unreserved Male | 21 Years | 37 Years |
| Unreserved Female | 21 Years | 40 Years |
| BC / EBC | 21 Years | 40 Years |
| SC / ST | 21 Years | 42 Years |
The notification also contains additional provisions concerning age relaxation, contractual service, ex-servicemen and other applicable categories. Candidates should check the relevant clause before claiming any relaxation.
The age limits above are also corroborated by current recruitment summaries based on Advertisement 28/2026.
BTSC Fishery Extension Officer Salary 2026
The post is placed at Pay Matrix Level-7.
| Particular | Details |
|---|---|
| Post | Fishery Extension Officer |
| Pay Matrix | Level-7 |
| Pay Scale | ₹44,900 – ₹1,42,400 |
The Level-7 pay scale is reported consistently for Advertisement No. 28/2026.
Note: Actual monthly salary received by an employee can differ from basic pay because of applicable allowances, deductions and Government rules. Therefore, this article does not present an estimated in-hand salary as an official figure.
BTSC Fishery Extension Officer Application Fee 2026
The notification specifies an online application fee of ₹100.
| Candidate Category | Application Fee |
|---|---|
| All applicable candidates | ₹100 |
The notification specifically states that the application fee is ₹100 and that payment is to be made through online mode only.
BTSC Fishery Extension Officer Important Dates 2026
The official BTSC recruitment page lists the following schedule for Advertisement No. 28/2026.
| Event | Date |
|---|---|
| Advertisement / Recruitment Notice | 24 September 2026 |
| Online Registration Start | 24 September 2026 |
| Online Application Last Date | 23 October 2026 |
| Fee Payment Last Date | 23 October 2026 |
| CBT Exam Date | To be announced |
BTSC Fishery Extension Officer Selection Process 2026
The selection process is based on:
- Computer Based Test (CBT)
- Eligible contractual work experience
- Document Verification
The final merit framework provides 75 marks for the written competitive examination and up to 25 marks for eligible work experience, making a total of 100 marks.
| Selection Component | Maximum Marks |
|---|---|
| Computer Based Written Examination | 75 |
| Eligible Contractual Work Experience | 25 |
| Total | 100 |
BTSC Fishery Extension Officer Exam Pattern 2026
The written competitive examination is conducted through a Computer Based Test (CBT).
The current recruitment information indicates:
| Exam Particular | Details |
|---|---|
| Mode | Computer Based Test (CBT) |
| Question Type | Objective / Multiple Choice Questions |
| Total Questions | 100 |
| Maximum Raw Marks | 100 |
| Duration | 2 Hours |
| Correct Answer | +1 Mark |
| Wrong Answer | -0.25 Mark |
| Minimum Qualifying Marks | 30% |
The notification states that the written competitive examination will be conducted through CBT and that the minimum qualifying requirement is 30%. It also provides for normalization where applicable.
Current recruitment information also reports 100 objective questions, two hours and 0.25-mark negative marking.
How Are CBT Marks Converted to Final Merit?
This is an important part of the recruitment.
The CBT is conducted for 100 raw marks, but the written examination contributes a maximum of 75 marks to the final merit.
The notification provides for multiplying the percentage obtained in the written examination by 0.75.
Example
If a candidate scores 60 marks out of 100:
60 × 0.75 = 45 merit marks
Therefore, 60% in the CBT contributes 45 marks to the final 100-mark merit structure.
Contractual Work Experience Marks
Eligible contractual work experience can contribute up to 25 marks to the final merit.
The benefit is not simply added to every candidate. The notification specifies that the benefit of work experience is available to candidates who qualify the written competitive examination and who submit the prescribed proof of experience.
The experience-related information must be supported through the prescribed certificate/payment documentation. Current recruitment information indicates that eligible experience is counted up to 24 September 2026.
Important
Fresh B.F.Sc. candidates who do not have eligible contractual experience can still apply if they satisfy the basic eligibility conditions. Experience is an additional merit component, not stated as an essential educational qualification.
Document Verification
Candidates qualifying under the prescribed selection process will be called for Document Verification.
The notification emphasizes that candidates must upload the required qualification, reservation and experience-related documents correctly during the online application.
Documents mentioned in the notification/application requirements include:
- Matriculation certificate
- Educational qualification certificates and marksheets
- Caste certificate, where applicable
- Creamy-layer certificate, where applicable
- EWS certificate, where applicable
- Permanent residence/residential certificate
- Disability certificate, where applicable
- Bihar Freedom Fighter dependent certificate, where applicable
- Ex-serviceman-related certificate, where applicable
- Salary payment certificate for eligible contractual experience
- Other applicable supporting documents
Candidates should keep the original documents available for verification.
BTSC Fishery Extension Officer Reservation Rules
The notification contains detailed reservation provisions for Bihar residents and different reserved categories.
One important condition is that reservation benefits are linked to the applicable Bihar domicile/residence requirements. Candidates from outside Bihar should carefully check the notification before claiming Bihar reservation benefits.
The notification also contains specific provisions concerning:
- SC/ST certificates
- BC/EBC certificates
- Creamy Layer certificate
- EWS certificate
- Women reservation
- PwBD reservation
- Ex-servicemen
- Bihar Freedom Fighter dependents
- Transgender candidates
- Disability-related documentation
Important Note for PwBD Candidates
The notification contains specific provisions for candidates claiming disability reservation.
Candidates claiming PwBD reservation must submit the prescribed disability certificate in the applicable format. The notification also states that disability may be medically examined again at the Commission level where required.
Candidates should therefore avoid uploading an outdated, unclear or non-prescribed disability certificate.
BTSC Fishery Extension Officer Application Process 2026
Candidates should complete the application online through the designated BTSC recruitment system.
Step 1 – Visit the BTSC Recruitment Portal
Open the official BTSC recruitment page and locate Advertisement No. 28/2026 – Fishery Extension Officer.
Step 2 – Registration
Complete the required registration details using the candidate’s own:
- Mobile number
- Email ID
- Personal details
The notification places responsibility on candidates to maintain their registered email ID and mobile number.
Step 3 – Enter Qualification Details
Enter the B.F.Sc. qualification details exactly according to the educational documents.
Step 4 – Enter Reservation Details
Select the applicable category carefully.
Step 5 – Enter Experience Details
Candidates claiming eligible contractual work experience should enter the details exactly according to their supporting certificate.
Step 6 – Upload Documents
Upload the required certificates/marksheets and other supporting documents.
Step 7 – Pay ₹100 Fee
Pay the application fee through the prescribed online payment mode.
Step 8 – Final Submission
Before final submission, carefully verify:
- Name
- Date of birth
- Category
- Educational qualification
- Experience
- Mobile number
- Email ID
- Uploaded documents
- Photograph
- Signature
The notification warns that corrections after submission are not ordinarily permitted and candidates are responsible for errors in their applications.
Important Documents to Upload
The notification specifically emphasizes uploading qualification, reservation and experience-related documents.
| Document | When Applicable |
|---|---|
| Matriculation Certificate | All candidates |
| Marksheets / Qualification Certificates | All candidates |
| B.F.Sc. Degree / Provisional Certificate | All candidates |
| Caste Certificate | SC/ST/BC/EBC candidates, where applicable |
| Creamy Layer Certificate | BC/EBC candidates, where applicable |
| EWS Certificate | EWS candidates |
| Residential / Domicile Certificate | Where applicable for Bihar reservation |
| Disability Certificate | PwBD candidates |
| Work Experience / Salary Payment Certificate | Candidates claiming eligible experience marks |
The notification warns that documents not uploaded with the online application may not be accepted later during document verification.
BTSC Fishery Extension Officer Recruitment 2026 – Important Application Mistakes to Avoid
1. Do not select an unrelated degree
The essential qualification is specifically Fisheries Science. A general graduation degree should not be treated as equivalent unless it meets the exact notification requirement.
2. Check your date of birth
The age is calculated as on 01 August 2026.
3. Check Bihar reservation eligibility
Reservation benefits have specific Bihar residence/domicile conditions.
4. Upload clear documents
The notification makes the candidate responsible for document quality and correctness.
5. Do not claim unsupported work experience
Experience marks require prescribed supporting documentation.
6. Do not wait until the final day
The official closing date is 23 October 2026.
7. Keep your registered mobile number and email active
The notification places responsibility on candidates to keep these details secure and accessible.
Who Meets the Key Conditions to Apply?
A candidate should be able to answer Yes to the following:
- Do you have a four-year B.F.Sc./Bachelor’s Degree in Fisheries Science?
- Is your Fisheries College under an Agricultural University recognized by ICAR?
- Were you at least 21 years old on 01 August 2026?
- Are you within the applicable maximum age?
- If claiming Bihar reservation, do you satisfy the applicable domicile/category requirements?
- Can you provide the required certificates?
- If claiming experience marks, do you have the prescribed eligible experience documentation?
- Can you complete the online application by 23 October 2026?
If any essential qualification is missing, candidates should not assume that another degree or unrelated experience will be accepted.
Who Should Avoid Applying for This Post?
A candidate should first reconsider applying if:
- They do not possess the required Fisheries Science qualification.
- Their qualification does not meet the stated ICAR-recognition requirement.
- They exceed the applicable maximum age without a valid relaxation.
- They are attempting to claim Bihar reservation without meeting the applicable conditions.
- They cannot provide the documents supporting their eligibility.
- They are claiming work-experience marks without the prescribed supporting certificate.
This is an objective eligibility check rather than a recommendation to apply.
BTSC Fishery Extension Officer Exam Syllabus
The uploaded advertisement provides the examination framework but does not reproduce a detailed topic-by-topic syllabus in the PDF.
Therefore:
Detailed syllabus: Not specified in the provided notification.
Current recruitment information indicates that the detailed subject syllabus is to be published separately by BTSC.
Candidates should therefore use the official BTSC website for the separately published syllabus rather than relying on unofficial topic lists.
BTSC Fishery Extension Officer Exam Date 2026
The examination date has not been announced in the recruitment advertisement/current recruitment listing.
Exam Date: Not specified in the provided notification.
Candidates should monitor the official BTSC website for the examination schedule, admit card and further notices. The BTSC recruitment page currently lists Advertisement No. 28/2026 as active.
BTSC Fishery Extension Officer Recruitment 2026 – FAQs
Q1. How many vacancies are available in BTSC Fishery Extension Officer Recruitment 2026?
Ans: A total of 231 vacancies have been advertised for the post of Fishery Extension Officer.
Q2. What is the post name in Advertisement No. 28/2026?
Ans: The post is Fishery Extension Officer (मत्स्य प्रसार पदाधिकारी).
Q3. What is the educational qualification?
Ans: Candidates must have a four-year Bachelor’s Degree in Fisheries Science (B.F.Sc.) from a Fisheries College under an Agricultural University recognized by ICAR, New Delhi.
Q4. What is the minimum age for BTSC Fishery Extension Officer Recruitment 2026?
Ans: The minimum age is 21 years as on 01 August 2026.
Q5. What is the maximum age limit?
Ans: The maximum age is 37 years for unreserved male candidates, 40 years for unreserved female/BC/EBC candidates and 42 years for SC/ST candidates, subject to the applicable provisions.
Q6. What is the salary of a BTSC Fishery Extension Officer?
Ans: The post is placed in Pay Matrix Level-7, with the notified pay scale of ₹44,900–₹1,42,400.
Q7. What is the application fee?
Ans: The application fee is ₹100, payable through the prescribed online mode.
Q8. When does the online application start?
Ans: Online registration starts on 24 September 2026.
Q9. What is the last date to apply?
Ans: The last date for online application and fee payment is 23 October 2026.
Q10. What is the selection process?
Ans: Selection is based on a Computer Based Test, eligible contractual work experience and document verification.
Q11. How many marks are assigned to the CBT in final merit?
Ans: The CBT contributes a maximum of 75 marks to the final merit.
Q12. How many marks are available for eligible work experience?
Ans: Eligible contractual work experience carries a maximum of 25 marks.
Q13. How many questions are in the CBT?
Ans: The CBT consists of 100 objective questions carrying 100 raw marks.
Q14. What is the duration of the CBT?
Ans: The examination duration is 2 hours.
Q15. Is there negative marking?
Ans: Yes. 0.25 mark is deducted for each incorrect answer.
Q16. What is the minimum qualifying percentage in the CBT?
Ans: The minimum qualifying requirement specified is 30%.
Q17. Is contractual work experience mandatory?
Ans: The recruitment provides marks for eligible contractual work experience, but the basic educational eligibility is the four-year Fisheries Science degree. Candidates without eligible experience should not claim experience marks.
Q18. Is the exam date announced?
Ans: The examination date has not been specified in the provided notification.
Q19. Is the detailed syllabus given in the notification?
Ans: The uploaded advertisement does not provide a detailed topic-wise syllabus. A separate syllabus may be published by BTSC.
Q20. Where can candidates apply?
Ans: Candidates should use the official BTSC recruitment/application system for Advertisement No. 28/2026.
Q21. Is this a regular appointment?
Ans: Yes. Advertisement No. 28/2026 is for regular appointment to the post of Fishery Extension Officer.
Q22. What is the job location?
Ans: The recruitment is for the Bihar Government fisheries establishment, so the job location is Bihar, subject to departmental posting.
Q23. What happens after qualifying the CBT?
Ans: Eligible candidates are considered for the applicable work-experience marks and are subsequently called for document verification according to the recruitment rules.
Q24. Can candidates modify the application after final submission?
Ans: Candidates should fill the application carefully because the notification states that changes/corrections after submission are not ordinarily permitted.
Final Words
The BTSC Fishery Extension Officer Recruitment 2026 is a regular recruitment under Advertisement No. 28/2026, with 231 vacancies for candidates holding the required four-year B.F.Sc. qualification.
The recruitment has a slightly different merit structure from a simple written-exam recruitment: the CBT contributes 75 marks, while eligible contractual work experience can contribute up to 25 marks. Candidates must therefore pay attention not only to their examination preparation but also to the documentation supporting any experience claim.
The official BTSC recruitment page currently lists the application window as 24 September 2026 to 23 October 2026.
Candidates should carefully verify their B.F.Sc. qualification, age as on 01 August 2026, reservation eligibility, uploaded documents and experience certificates before final submission.
TSC Fishery Extension Officer Recruitment 2026 – Official Links
Official Links – BTSC Fishery Extension Officer Recruitment 2026
Advertisement No. 28/2026 – Fishery Extension Officer
Candidates should verify the latest notice, syllabus and application status on the official BTSC website before submission.
The official BTSC recruitment page lists Advertisement 28/2026 as “Advertisement for regular appointment to the post of FISHERY EXTENSION OFFICER” and provides the online application facility.
