Bihar Technical Service Commission (BTSC) has released a recruitment notification for 1,091 Laboratory Assistant (Prayogshala Sahayak) posts under the Science, Technology & Technical Education Department, Government of Bihar. This is one of the largest technical recruitment drives in Bihar in 2026, covering 12 engineering and science disciplines through Advertisement Numbers 02/2026 to 13/2026. Candidates holding a relevant Diploma, B.E., B.Tech, or Science degree can apply online at btsc.bihar.gov.in from 6 April to 6 May 2026. Selection is through a Computer Based Test followed by Document Verification. The pay scale is Pay Level-4 (₹25,500–₹81,100) as per the 7th Pay Commission.
Quick Facts
| Field | Details |
|---|---|
| Organisation | Bihar Technical Service Commission (BTSC) |
| Advertisement Numbers | 02/2026 to 13/2026 |
| Total Posts | 1,091 |
| Disciplines | 12 |
| Application Window | 06 April – 06 May 2026 |
| Age Reference Date | 01 August 2026 |
| Application Fee | ₹100 (all categories) |
| Official Website | btsc.bihar.gov.in |
1. Complete Notification Overview
The Bihar Technical Service Commission (BTSC), headquartered at 19 Harding Road, Patna, is the state-level body responsible for technical recruitment across Bihar’s government departments. This 2026 notification fills Laboratory Assistant (Prayogshala Sahayak) positions across government polytechnic institutes, engineering colleges, and technical education centres under Bihar’s Science, Technology & Technical Education Department.
What makes this recruitment particularly notable is its structure: rather than a single advertisement, BTSC has issued 12 separate advertisement numbers (02/2026 to 13/2026), one for each discipline. Candidates apply under the specific advertisement number for their own discipline, and the merit list is prepared discipline-wise. A candidate with qualifications in multiple disciplines may apply for each relevant discipline separately. The 1,091 posts span disciplines ranging from high-demand Computer Science & IT (252 posts) to niche fields like Agriculture & Machinery (1 post) and Automobile/Mechanical Diesel (4 posts).
| Field | Details |
|---|---|
| Organisation | Bihar Technical Service Commission (BTSC) — 19 Harding Road, Patna – 800001 |
| Under Department | Science, Technology & Technical Education Department, Government of Bihar |
| Post Name | Laboratory Assistant (Prayogshala Sahayak) |
| Advertisement Numbers | 02/2026 to 13/2026 (12 separate discipline-wise notifications) |
| Total Vacancies | 1,091 posts across 12 engineering and science disciplines |
| Application Mode | Online only at btsc.bihar.gov.in via btsc.pariksha.nic.in portal |
| Application Start Date | 06 April 2026 |
| Last Date to Apply | 06 May 2026 |
| Fee Payment Deadline | 06 May 2026 |
| Age Reference Date | 01 August 2026 |
| Application Fee | ₹100 for all categories; payment via Credit Card/Debit Card/Net Banking only |
| Pay Scale | Pay Level-4: ₹25,500 – ₹81,100 (7th Pay Commission) |
| Selection Process | Computer Based Test (CBT) → Document Verification (DV) → Merit List |
| Merit Weightage | CBT: 75% | Work Experience/Higher Qualification: 25% |
| Negative Marking | 0.25 marks deducted per wrong answer in CBT |
| Interview | No interview — selection is purely through CBT + DV |
| BTSC Helpdesk | Toll Free: 18003456221 | Email: btssc-bih@gov.in | 10 AM – 6 PM |
| Official Website | btsc.bihar.gov.in |
2. Important Dates
The application window spans exactly 30 days — from 6 April to 6 May 2026. This is a reasonable window for a large-scale recruitment, but candidates should avoid last-minute submission given the discipline-specific application process and the requirement to upload documents correctly in each separate application. The exam date has not yet been announced; it will be published on the official BTSC website once the registration process is complete.
| Event | Date |
|---|---|
| Short Notification Released | 03 April 2026 |
| Online Application Opens | 06 April 2026 |
| Last Date to Apply Online | 06 May 2026 |
| Last Date for Fee Payment | 06 May 2026 |
| Age Reference Date | 01 August 2026 |
| Admit Card Release | To be announced on btsc.bihar.gov.in |
| Computer Based Test (CBT) | To be announced after application closes |
| Document Verification (DV) | After CBT result declaration |
| Final Merit List | After DV completion |
Note: Once the application form is submitted, no editing is permitted. Review all fields carefully — including discipline, category, and document uploads — before final submission. Incomplete or incorrectly filled applications may be rejected at the Document Verification stage.
3. Discipline-wise Vacancy Details — 1,091 Posts Across 12 Fields
The 1,091 vacancies are spread across 12 distinct engineering and science disciplines, each governed by a separate advertisement number. Computer Science & IT dominates with 252 posts — nearly 23% of total vacancies. Electrical Engineering, Civil Engineering/Rural Engineering, and Mechanical Engineering each carry 166 posts. Science (general) has 164 posts. Niche fields like Agriculture & Machinery (1 post), Automobile/Mechanical Diesel (4 posts), Chemical Engineering (2 posts), Ceramics (2 posts), and Printing Engineering (2 posts) are available for highly specialised candidates but will be extremely competitive given their small numbers.
| Advt. No. | Discipline | Vacancies | % of Total |
|---|---|---|---|
| 09/2026 | Computer Science Engineering/Information Technology | 252 | 23.1% |
| 04/2026 | Electrical Engineering | 166 | 15.2% |
| 10/2026 | Civil Engineering/Rural Engineering | 166 | 15.2% |
| 11/2026 | Mechanical Engineering | 166 | 15.2% |
| 12/2026 | Science (General) | 164 | 15.0% |
| 05/2026 | Electronics Engineering/Electronics & Communication | 146 | 13.4% |
| 03/2026 | Textile Engineering | 20 | 1.8% |
| 02/2026 | Automobile Engineering/Mechanical Diesel | 4 | 0.4% |
| 06/2026 | Chemical Engineering | 2 | 0.2% |
| 07/2026 | Printing Engineering | 2 | 0.2% |
| 08/2026 | Ceramics Engineering | 2 | 0.2% |
| 13/2026 | Agriculture & Machinery | 1 | 0.1% |
| Grand Total — All 12 Disciplines | 1,091 | 100% |
Note: Candidates who hold qualifications in more than one discipline may apply for each relevant discipline separately by submitting individual applications with separate fees. Category-wise breakdown (UR/EWS/OBC/EBC/SC/ST) will be released in the detailed discipline-wise notification PDFs.
4. Eligibility Criteria
The educational qualification for BTSC Lab Assistant varies by discipline. For most engineering posts, candidates need either a Diploma or a Degree (B.E./B.Tech) in the relevant engineering field. For the Science post (Advt. 12/2026), the minimum qualification is an Intermediate (10+2) with Science from a recognised board — making this the most accessible post in terms of entry-level qualification. Candidates with higher qualifications (B.Sc., M.Sc., or B.Tech) applying for science posts will earn additional marks in the merit list through the work experience/higher qualification component.
Out-of-state candidates are also eligible to apply, but they will not be entitled to any reservation benefits that are exclusively available to Bihar domicile holders. They must apply under the Unreserved category and compete accordingly. There is no domicile restriction mentioned as a blanket disqualifier.
| Criterion | Requirement | Important Note |
|---|---|---|
| Nationality | Indian Citizen | As per constitutional provisions |
| Education — Science Post (Advt. 12/2026) | Intermediate (10+2) with Science from a recognised Board/University | Lowest qualification requirement across all 12 disciplines — accessible to 12th pass Science students |
| Education — Engineering Posts (all other advts.) | Relevant Diploma OR B.E./B.Tech in the specific engineering discipline from a recognised institution | Discipline must match the advertisement applied for. Check individual notification PDFs for exact qualification details per discipline |
| Minimum Age | 18 years as on 01.08.2026 | All categories |
| Maximum Age — General/EWS Male | 37 years as on 01.08.2026 | Born on or after 02.08.1989 |
| Maximum Age — General Female/OBC/EBC | 40 years as on 01.08.2026 | Includes both male and female candidates of OBC/EBC category |
| Maximum Age — SC/ST | 42 years as on 01.08.2026 | Applies to both male and female SC/ST candidates |
| Out-of-state Candidates | Eligible to apply | No Bihar domicile mandatory, but reservation benefits (OBC/EBC/SC/ST) available only to Bihar residents. Non-residents compete under the Unreserved pool |
| Work Experience | Not mandatory for basic eligibility | Work experience in a related field earns bonus marks in the final merit list — freshers are eligible but experienced candidates have an advantage |
5. Pay Scale, Salary & Service Benefits
Laboratory Assistant posts in Bihar’s technical education department fall under Pay Level-4 of the 7th Pay Commission with a pay range of ₹25,500 to ₹81,100. The entry pay at Level-4 starts at ₹25,500 per month as basic pay. When DA, HRA, and other state government allowances are added, the gross in-hand salary for a newly joining Laboratory Assistant typically works out to ₹35,000–₹45,000 per month, depending on the city of posting and applicable allowances at the time of joining. The DA component changes quarterly based on the AICPI index.
Beyond the immediate salary, government laboratory positions in Bihar’s technical institutions offer structured career progression within the state technical education cadre, job security as a permanent state government employee, and the opportunity to contribute to hands-on technical education for thousands of students every year. Selected candidates are typically posted across government polytechnics and engineering colleges spread throughout Bihar’s 38 districts.
| Component | Details |
|---|---|
| Pay Level | Level-4 (7th Pay Commission) |
| Basic Pay Range | ₹25,500 – ₹81,100 |
| Dearness Allowance (DA) | As per Bihar Government rules — revised periodically based on AICPI index |
| House Rent Allowance (HRA) | As per city/district of posting — applicable as per state government norms |
| Medical Benefits | As per Bihar Government health scheme for state employees |
| Pension | National Pension System (NPS/Contributory Pension) for new appointments |
| Job Nature | Regular/Permanent government appointment — not contractual |
| Posting Location | Government polytechnic institutes and engineering colleges across Bihar’s 38 districts |
6. Exam Pattern — CBT, Merit Weightage & Negative Marking
The BTSC Lab Assistant selection does not involve any interview — the entire process rests on CBT performance and document-verified work experience/higher qualification marks. The Computer Based Test carries 75% of the final merit, making it the most decisive stage. The remaining 25% comes from marks awarded for work experience in a related field and/or possession of higher educational qualifications beyond the minimum requirement.
The CBT consists of 100 objective-type (MCQ) questions covering two areas: technical questions from the candidate’s discipline, and General Knowledge. The exact split between technical and GK questions will be clarified in the detailed notification. There is a negative marking of 0.25 marks per wrong answer — meaning a wrong answer costs one-quarter of a mark.
Final Merit Score = CBT Marks (75%) + Work Experience/Higher Qualification Marks (25%)
CBT: 100 MCQs | Negative Marking: −0.25 per wrong answer | No Interview | DV is qualifying only
| Stage | Details | Weightage |
|---|---|---|
| Computer Based Test (CBT) | 100 objective-type MCQs — technical subject questions plus General Knowledge. Negative marking: −0.25 per wrong answer. Online mode only | 75% of final merit |
| Work Experience/Higher Qualification | Marks awarded for relevant work experience in the discipline and/or higher educational qualification beyond the minimum required (e.g., B.Tech for a diploma-minimum post, M.Tech/M.Sc. for degree-minimum post) | 25% of final merit |
| Document Verification (DV) | Shortlisted candidates called to verify originals of all submitted documents. Failure to produce valid originals means disqualification. No marks awarded at DV — purely qualifying | Qualifying only |
| Final Merit List | Prepared discipline-wise and category-wise based on CBT + Experience/Qualification weightage | 100% |
Key points about the CBT & selection:
- No interview: CBT performance and documents are the only deciding factors
- Negative marking: −0.25 marks per incorrect answer; unattempted questions carry no penalty
- Category-wise minimum qualifying marks in CBT will be specified in the detailed notification
- Candidates with relevant industry or lab experience gain up to 25% additional merit advantage — freshers can still compete but may rank lower than experienced candidates with similar CBT scores
- Final merit lists are prepared separately for each of the 12 disciplines — no cross-discipline competition
- If the CBT is conducted in multiple shifts, score normalisation will be applied to ensure fairness
- Out-of-state candidates are eligible to appear in CBT, but reservation benefits apply only to Bihar domicile holders
7. Application Fee
One of the most candidate-friendly aspects of this recruitment is the flat fee of ₹100 for all categories — including General, OBC, EBC, SC, ST, and EWS. There is no fee variation by category. Payment must be completed online through the BTSC portal using Credit Card, Debit Card, or Net Banking. Cash payments or bank challan modes are not accepted.
| Category | Application Fee | Mode of Payment |
|---|---|---|
| All Categories (UR/OBC/EBC/EWS/SC/ST) | ₹100 | Credit Card/Debit Card/Net Banking (online only) |
| Per Discipline Application | ₹100 per application | Separate fee for each discipline applied — no combined payment option |
Note: ₹100 application fee once paid is not refundable under any circumstances, including if the candidate is found ineligible or does not appear for the exam. Pay separately for each discipline applied for.
8. How to Apply Online — Step by Step
The online application is submitted through BTSC’s examination partner portal at btsc.pariksha.nic.in, accessible via the official BTSC website btsc.bihar.gov.in. Candidates must first complete a new registration to generate login credentials, then use those credentials to fill and submit the application form. Each discipline requires a separate application and separate fee payment.
| Step | Description |
|---|---|
| 1. Download & Read the Discipline-wise Notification PDF | Download the relevant advertisement PDF from btsc.bihar.gov.in for your specific discipline. Each advertisement (02/2026 to 13/2026) contains the precise eligibility conditions, qualification requirements, category-wise vacancy breakdown, and discipline-specific rules |
| 2. Prepare Scanned Documents & Photo | Keep ready: recent passport-size photograph, signature on white paper, Matriculation certificate/marksheet (age proof), Intermediate (10+2) Science certificate, Diploma/Degree certificate and marksheets (all semesters), caste/EWS certificate (if applicable), experience certificates (if any), and Aadhaar card |
| 3. Complete E-KYC/New Registration | Visit btsc.bihar.gov.in, click the Apply Online link for the relevant advertisement. Complete new registration with name, date of birth, email, and mobile number to generate your Portal Registration Number and password. Complete E-KYC as prompted |
| 4. Fill the Application Form | Log in with your registration credentials. Fill in personal details, educational qualifications (all semesters/years), category details, work experience details, and exam centre preference. Once submitted, no editing is possible |
| 5. Upload Documents & Photograph | Upload photograph, signature, and all required documents at the designated upload sections. All uploads must be legible, within prescribed file sizes, and in the correct format |
| 6. Pay ₹100 Application Fee Online | Pay via Credit Card, Debit Card, or Net Banking through the BTSC payment gateway. Save or screenshot the transaction reference as proof of payment |
| 7. Submit & Print Confirmation | After final submission, your application/registration number is generated. Download and print the system-generated filled application form and fee receipt for future stages including admit card download, exam, and document verification |
Quick reference: Portal: btsc.bihar.gov.in | Opens: 06 Apr 2026 | Closes: 06 May 2026 | Fee: ₹100 (all categories) | Advt: 02/2026 to 13/2026 | Helpdesk: 18003456221
9. Documents Required
Documents must be uploaded during the online application, and originals must be produced at Document Verification. Self-attested photocopies of all documents must accompany the originals at DV. Failure to produce any required original at DV leads to disqualification, even if the candidate has topped the CBT.
| Document | Details |
|---|---|
| Age Proof | Matriculation (10th) Mark Sheet & Certificate — showing date of birth from a recognised board |
| Educational Qualifications | 10+2 Science certificate; Diploma/Degree marksheets (all semesters); Degree certificate as applicable to the discipline |
| Caste/Category Certificate | SC/ST/OBC/EBC — issued by competent authority. EWS — Income & Asset certificate from Tehsildar/DM for correct financial year |
| Aadhaar Card | Mandatory for E-KYC during registration and identity verification at all stages |
| Photo ID Proof | Voter card, PAN card, Aadhaar, Driving Licence, or Passport — carry original to exam centre |
| Work Experience Certificates | Certificates from previous employer(s) specifying designation, duration, and nature of work — required for experience-based merit marks |
| Higher Qualification Certificates | M.Tech/M.Sc./B.Tech (if applying above minimum qualification) — for higher qualification merit component |
| Application Printout & Fee Receipt | Printed copy of submitted application form and payment confirmation — carry to DV and exam centre |
| Passport-size Photographs | Recent colour photographs with light background — carry multiple copies for each stage |
| Portal Registration Number | Generated at registration — essential for admit card download and all future correspondence with BTSC |
Note: Candidates must complete E-KYC during the registration process. Carry your Portal Registration Number along with all supporting documents to Document Verification as specified in the official DV call letter from BTSC.
10. Official Links
- btsc.bihar.gov.in/recruitment — BTSC Official Recruitment Page (All Notifications)
- btsc.pariksha.nic.in — Apply Online Portal (Direct Application Link)
- Download PDF — Advt. 09/2026: Lab Assistant (Computer Science & IT)
- Download PDF — Advt. 04/2026: Lab Assistant (Electrical Engineering)
- Download PDF — Advt. 10/2026: Lab Assistant (Civil/Rural Engineering)
- Download PDF — Advt. 11/2026: Lab Assistant (Mechanical Engineering)
- Download PDF — Advt. 12/2026: Lab Assistant (Science)
- Download PDF — Advt. 05/2026: Lab Assistant (Electronics/Electronics & Communication)
BTSC Helpdesk: Toll Free 18003456221 | Email: btssc-bih@gov.in | Available 10:00 AM to 6:00 PM on working days. For technical issues with the application portal, contact BTSC helpdesk before the deadline.
11. Frequently Asked Questions
1. What is Bihar BTSC Laboratory Assistant Recruitment 2026 and who is recruiting?
The Bihar Technical Service Commission (BTSC), headquartered at 19 Harding Road, Patna, has released 12 separate advertisement notifications (Advt. No. 02/2026 to 13/2026) for 1,091 Laboratory Assistant (Prayogshala Sahayak) posts under the Science, Technology & Technical Education Department, Government of Bihar. These positions are for government polytechnic institutes and engineering colleges across Bihar. Online applications run from 6 April 2026 to 6 May 2026 at btsc.bihar.gov.in. Both Bihar and non-Bihar candidates are eligible to apply.
2. Which discipline has the most vacancies in BTSC Lab Assistant 2026?
Computer Science Engineering/Information Technology (Advt. 09/2026) has the highest vacancy at 252 posts — about 23% of all 1,091 vacancies. Other major disciplines: Electrical Engineering — 166 posts; Civil/Rural Engineering — 166 posts; Mechanical Engineering — 166 posts; Science (General) — 164 posts; Electronics/Electronics & Communication — 146 posts. Smallest disciplines: Agriculture & Machinery (1 post), Chemical Engineering (2 posts), Ceramics (2 posts), Printing Engineering (2 posts).
3. What is the age limit for BTSC Lab Assistant 2026 and when is it calculated?
Age is calculated as on 01 August 2026. The minimum age for all categories is 18 years. Maximum age limits: General/EWS Male — 37 years; General Female — 40 years; OBC/EBC (Male & Female) — 40 years; SC/ST (Male & Female) — 42 years. Age relaxation applies as per Bihar Government rules for each reserved category. Out-of-state candidates do not get Bihar-specific reservation relaxation and must apply under the unreserved age limit applicable to their gender.
4. What is the selection process for BTSC Lab Assistant 2026?
Selection is through a simple two-stage process with no interview. Stage 1 — Computer Based Test (CBT): 100 objective-type MCQs covering the relevant technical discipline and General Knowledge, with negative marking of −0.25 per wrong answer; carries 75% weightage. Work Experience/Higher Qualification marks carry 25% weightage. Stage 2 — Document Verification (DV): shortlisted candidates verify original documents; qualifying only, no additional marks. The final merit list is prepared discipline-wise and category-wise based on the combined CBT plus experience/qualification score.
5. What is the pay scale and approximate salary for BTSC Lab Assistant?
Selected candidates are placed at Pay Level-4 (7th Pay Commission) with a basic pay range of ₹25,500 to ₹81,100. Entry pay starts at ₹25,500 per month as basic. With DA, HRA, and other state government allowances, the approximate gross monthly salary for a newly joining Lab Assistant is typically ₹35,000 to ₹45,000 per month, depending on posting location and current DA rates. This is a regular/permanent government appointment with full pension (NPS), medical benefits, and other state government perks.
6. Can freshers apply for BTSC Lab Assistant 2026? Is work experience mandatory?
Yes, freshers are fully eligible to apply, and work experience is not mandatory for basic eligibility. However, the final selection gives 25% weightage to work experience and/or higher qualifications, so a fresher with no experience starts the merit calculation with only CBT marks (75% weightage), while a candidate with relevant work experience and higher qualification has full 100% merit score potential. Experienced candidates have a merit advantage over freshers with identical CBT scores, so freshers should aim to score very highly in the CBT to compensate, especially since there is no interview stage.
7. Can candidates from outside Bihar apply? Do they get reservation benefits?
Yes, out-of-state candidates can apply. However, reservation benefits (OBC/EBC/SC/ST category seats) are available only to Bihar domicile holders — out-of-state candidates must compete in the Unreserved (UR) pool, with no Bihar-specific age relaxation or fee concessions. Out-of-state candidates are eligible for the CBT and can be selected if they rank within the UR cut-off, making this recruitment more open than many state-level recruitments that restrict to domicile holders only.
8. Can I apply for multiple disciplines in BTSC Lab Assistant 2026?
Yes — candidates holding qualifications in multiple disciplines can apply for each relevant discipline separately. Since each discipline has its own advertisement number (02/2026 to 13/2026), candidates need to submit a separate application for each discipline, pay a separate ₹100 fee per application, and appear in the CBT separately for each discipline. For example, a B.Tech (CSE) graduate with a minor in Electronics could apply for both Advt. 09/2026 (CSE/IT) and Advt. 05/2026 (Electronics), paying ₹100 for each and appearing in both CBTs. Selection in one discipline does not affect candidature in another.
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