The BSF ASI Lab Technician Question Paper 2026 is now available. The Border Security Force (BSF) conducted the Computer Based Test (CBT) for ASI (Laboratory Technician), Group C on 01 September 2026 as part of its 2nd Phase CBT for the Paramedical Staff Recruitment advertised in 2024. In this post you get the question paper PDF, a complete paper analysis, subject-wise and topic-wise weightage, important questions with answers, the full syllabus and exam pattern, and the expected cut off 2026 for every category.
Quick Answer: The BSF ASI Lab Technician exam 2026 was held on 01 September 2026 in CBT mode with 100 questions of 100 marks — General Knowledge & Numerical Aptitude (25), Human Anatomy & Physiology (25) and the professional section (50). The overall paper was moderate to difficult with many case-based and assertion-reason questions. Blood Banking (14 questions) was the highest-weightage topic. The expected cut off for the UR category is 62–63 marks out of 100.
BSF ASI Lab Technician Exam 2026 – Key Highlights
Exam Date
01 Sep 2026
Total Questions
100
ASI Lab Tech Posts
38
Expected UR Cut Off
62–63
BSF ASI Lab Technician Exam 2026 – Quick Overview
| Organisation | Border Security Force (BSF), Ministry of Home Affairs |
| Recruitment | BSF Paramedical Staff Recruitment (advertised in 2024) |
| Post Name | Assistant Sub Inspector (ASI) – Laboratory Technician, Group C |
| Vacancies | 38 (UR 12, EWS 4, OBC 12, SC 6, ST 4) |
| Pay Scale | Pay Level 5 – ₹29,200 to ₹92,300 per month |
| Exam Date | 01 September 2026 (2nd Phase CBT held from 1 to 3 September 2026) |
| Shift Analysed | 1:00 PM – 4:00 PM reporting slot |
| Exam Mode | Computer Based Test (CBT) |
| Questions / Marks | 100 objective questions / 100 marks (1 mark each) |
| Duration | 2 hours (120 minutes) |
| Overall Difficulty | Moderate to Difficult |
| Official Website | rectt.bsf.gov.in |
BSF ASI Lab Technician Question Paper 2026 PDF Download
Download the complete BSF ASI Lab Technician question paper of the 01 September 2026 CBT below. The PDF contains all 100 questions section-wise (General Knowledge & Numerical Aptitude, Human Anatomy & Physiology and the professional section) with four options each. Solve it in 120 minutes to check your level before the result.
BSF ASI Lab Technician Question Paper 2026 PDF
CBT held on 01 September 2026 – 100 Questions – Group C ASI (Laboratory Technician)
⬇ Download Question Paper PDFFree PDF for practice. Source: candidate response sheet of BSF CBT 01.09.2026 (Hindi medium).
Note: This paper is shared for educational and practice purposes only. BSF has not released an official post-wise question paper. Match your answers with the official provisional answer key available through the BSF recruitment portal.
BSF ASI Lab Technician Paper Analysis 2026 (01 September)
After checking all 100 questions, the Testpaperlive faculty team rates the overall paper as moderate to difficult. The numerical aptitude questions were easy to moderate, while the general knowledge part included current affairs from 2025–26 that could be tricky for students who skipped monthly revision. The Anatomy & Physiology and professional sections were application-based — most questions were case scenarios ("a patient shows…", "a laboratory observes…") instead of direct one-liners. The professional section also had 6 assertion-reason questions, mostly from Blood Banking and Immunology.
| Section | Questions | Difficulty Level | Good Attempts |
|---|---|---|---|
| General Knowledge & Numerical Aptitude | 25 | Easy to Moderate | 18–20 |
| Human Anatomy & Physiology | 25 | Moderate | 17–19 |
| Professional Section (Lab Technology) | 50 | Moderate to Difficult | 30–34 |
| Total | 100 | Moderate to Difficult | 65–73 |
🩸 Blood Bank dominated
14 out of 50 professional questions (28%) came from blood grouping, crossmatch, blood components and blood bank QC.
🧪 No pure Biochemistry
The section was named "Bio Chemistry" on the response sheet, but it was full of Microbiology, Immunology and Blood Bank questions.
🔬 Lab Management counts
8 questions on quality control, biosafety, waste disposal, microscope setting and specimen handling.
🧠 Concept-based paper
Case-based and assertion-reason questions tested understanding, not rote memory — practice MCQs of the same type.
BSF ASI Lab Technician Subject-wise Weightage 2026
We checked every question of the 01 September 2026 paper and grouped it topic-wise. Use this weightage to plan your preparation for upcoming BSF, CAPF and other central government Lab Technician exams.
1. Professional Section (Lab Technology) – 50 Questions
Blood Banking & Transfusion Medicine – 14 Qs (28%)
Immunology & Serology – 8 Qs (16%)
Laboratory Management, QC & Biosafety – 8 Qs (16%)
Mycology – 6 Qs (12%)
Bacteriology, Sterilization & Disinfection – 5 Qs (10%)
Virology & Specimen Transport – 5 Qs (10%)
Parasitology – 4 Qs (8%)
| Topic | Questions | Concepts Asked |
|---|---|---|
| Blood Banking & Transfusion | 14 | Major crossmatch, immediate-spin crossmatch, forward & reverse grouping, packed RBC, FFP storage, CPDA-1, donor deferral (malaria), blood bank refrigerator & QC, labelling errors |
| Immunology & Serology | 8 | Type IV hypersensitivity, passive vs active immunity, autoimmunity (ANA), zone of equivalence, cytotoxic T cells, alternative complement pathway, dendritic cells in transplant, vaccine hesitancy |
| Lab Management, QC & Biosafety | 8 | Daily QC data tracking, precision/reproducibility, microscope illumination, HEPA filter, biohazard waste disposal, pneumatic tube transport, synovial fluid processing, lab organisation |
| Mycology | 6 | Cryptococcus (India ink), fragmentation/arthroconidia, Malassezia furfur, KOH mount, SDA with chloramphenicol + Fontana-Masson, ergosterol-targeting antifungals |
| Bacteriology & Sterilization | 5 | Use-dilution test, carbon source in culture media, faecal coliform test at 44.5°C, direct vs viable count, antimicrobial susceptibility zone |
| Virology | 5 | Positive-sense RNA genome, varicella-zoster latency, viral transport medium, respiratory swab handling, haemagglutination inhibition assay |
| Parasitology | 4 | Trypanosoma brucei stage, Toxoplasma tissue cyst, E. histolytica trophozoite, multiple stool samples |
| Total | 50 | Clinical Biochemistry and Histopathology – no direct question in this shift |
2. Human Anatomy & Physiology – 25 Questions
| System / Topic | Questions | Concepts Asked |
|---|---|---|
| Reproductive System | 3 | Epididymis, ovary (ovulation & oestrogen), fallopian tube vs uterus |
| Digestive System & Liver | 3 | Fatty change after alcohol, Kupffer cells, gastric emptying |
| Musculoskeletal System & Joints | 3 | Tendons, synovial joint movement, synovial fluid in inflammatory arthritis |
| Cell Biology | 2 | Smooth ER (detoxification), mitochondria (double membrane, circular DNA) |
| Cardiovascular System | 2 | Desmosomes in intercalated discs, complete ventricular septum |
| Blood | 2 | Normal RBC morphology, schistocytes |
| Respiratory System | 2 | Alveolar structure, right vs left primary bronchus |
| Endocrine System | 2 | ADH, thyroid gland (BMR) |
| Nervous System | 2 | Grey & white matter of spinal cord, reflex arc |
| Integumentary System (Skin) | 2 | Apocrine sweat gland, stratum lucidum |
| Lymphatic System | 1 | Spleen vs lymph node |
| Urinary System | 1 | Urinary bladder filling (transitional epithelium & rugae) |
3. General Knowledge & Numerical Aptitude – 25 Questions
| Topic | Questions | Concepts Asked |
|---|---|---|
| Numerical Aptitude – 12 Questions | ||
| Percentage, Discount, Profit & Loss | 3 | Successive discount, profit/loss on oranges, election percentage |
| Simple & Compound Interest | 2 | SI difference of two banks, half-yearly compound interest |
| Average, Ratio & Partnership | 2 | Wrong entry in average, partner joining after 8 months |
| Pipes & Cistern, Boat & Stream | 2 | Two pipes filling a tank, speed of boat in still water |
| HCF, Mensuration & Data Interpretation | 3 | HCF of rope lengths, perimeter of triangle, age-wise employee table |
| General Knowledge – 13 Questions | ||
| Indian Polity & Governance | 3 | 42nd Amendment, role of civil servants, e-Governance |
| Geography & Environment | 3 | Demographic transition, Lakshadweep, sea-level rise on coral islands |
| Current Affairs (2025–26) | 3 | Women's Day 2025 app forum, AUSTRAHIND 2025, WTO Trade & Environment Week 2026 |
| Modern Indian History | 2 | Bhagat Singh's Assembly bomb (1929), Tilak's Swaraj |
| Govt Schemes & Social Development | 2 | ARHCs under PMAY-U, safe drinking water & health outcomes |
Important Questions Asked in BSF ASI Lab Technician Exam 2026 (with Answers)
Here are selected questions from the 01 September 2026 paper with their correct answers, prepared by the Testpaperlive faculty team. Use them for quick revision.
| SN | Question (in short) | Correct Answer |
|---|---|---|
| 1 | India ink preparation shows capsulated round yeast cells. Which fungus? | Cryptococcus |
| 2 | Forward grouping: agglutination with anti-B and anti-D, none with anti-A. Reverse grouping: agglutination with A cells only. Interpretation? | B and D antigens on RBCs, anti-A in plasma (B Positive) |
| 3 | Anticoagulant used in blood bags for whole blood storage | Citrate-Phosphate-Dextrose-Adenine (CPDA) |
| 4 | Stage of Trypanosoma brucei found in peripheral blood | Trypomastigote |
| 5 | Stage of Toxoplasma that persists in human tissues and is not seen in blood smear | Tissue cyst containing bradyzoites |
| 6 | Most characteristic feature of E. histolytica trophozoite in saline mount | Ingested red blood cells |
| 7 | Complement activation without antibody or PAMP recognition | Alternative pathway |
| 8 | Virus that remains latent after chickenpox and reactivates as shingles | Varicella-zoster virus |
| 9 | Isolating fungi from a sample with bacterial contaminants and showing melanin in dematiaceous hyphae | Sabouraud agar with chloramphenicol + Fontana-Masson stain |
| 10 | Test that specifically indicates thermotolerant (faecal) coliforms in water | Faecal coliform test at 44.5°C |
| 11 | Hypopigmented patches on chest/back; scraping shows round yeast cells with short hyphae | Malassezia furfur |
| 12 | Itchy eczematous rash 48 hours after contact, positive patch test | T-cell mediated delayed (Type IV) hypersensitivity |
| 13 | Donor-derived cell that activates naïve recipient T cells after transplant | Dendritic cell |
| 14 | Main biosafety function of HEPA filter in a biological safety cabinet | Prevents release of airborne microorganisms |
| 15 | Smaller zone of inhibition than the susceptible control (QC within limits) means | The isolate shows increased resistance |
| 16 | Structure where sperm mature and gain motility | Epididymis |
| 17 | Structure that prevents cardiac muscle cells from separating during contraction | Desmosomes in intercalated discs |
| 18 | Organelle for detoxification of drugs in liver cells | Smooth Endoplasmic Reticulum (SER) |
| 19 | Immune cells lining liver sinusoids that phagocytose bacteria | Kupffer cells |
| 20 | Hormone that increases water permeability of renal collecting ducts | Antidiuretic hormone (ADH) |
| 21 | Peripheral smear finding that strongly suggests mechanical destruction of RBCs | Increased schistocytes |
| 22 | Location of prominent stratum lucidum | Palms of hands and soles of feet |
| 23 | Right primary bronchus differs from the left by | Wider diameter and more vertical orientation |
| 24 | Island group near the Malabar coast of Kerala | Lakshadweep Islands |
| 25 | Venue of 4th edition of India–Australia exercise AUSTRAHIND 2025 (October 2025) | Irwin Barracks, Perth |
| 26 | Full form of ARHCs under PMAY-Urban | Affordable Rental Housing Complexes |
| 27 | Aim of the bomb thrown by Bhagat Singh and B.K. Dutt in the Central Assembly (1929) | To protest against the Public Safety Bill and Trade Disputes Bill |
| 28 | Cost price of 15 oranges = selling price of 25 oranges. Profit or loss %? | 40% loss |
| 29 | Pipes A (8 h) and B (12 h) open together; A closed after 4 h. Time for B to fill the rest? | 2 hours |
| 30 | Ropes of 60 cm, 84 cm and 108 cm cut into equal pieces. Maximum length of each piece? | 12 cm |
BSF ASI Lab Technician Expected Cut Off 2026
BSF selects candidates for ASI (Lab Technician) on the basis of written exam merit, category-wise, against only 38 posts. No official post-wise cut off for ASI (Lab Technician) is available from previous cycles, so the table below shows the previous trend (approximate) and the expected cut off 2026 prepared by the Testpaperlive faculty team after analysing this paper. Because the 2026 paper was more case-based than earlier Lab Technician papers, the cut off is expected to stay around 1–2 marks lower than the previous trend.
| Category | Vacancies | Previous Trend (Approx.) | Expected Cut Off 2026 |
|---|---|---|---|
| UR (General) | 12 | 63–64 | 62–63 |
| EWS | 4 | 60–61 | 58–60 |
| OBC | 12 | 60–62 | 59–61 |
| SC | 6 | 53–54 | 51–53 |
| ST | 4 | 49–50 | 47–49 |
Important: The above cut off is an expected estimate for guidance only, not official. The final cut off depends on the number of candidates, normalisation (if applied), answer key changes and category-wise vacancies. Always check the official result at rectt.bsf.gov.in.
Factors That Will Decide the Cut Off
- Very few posts: only 38 vacancies, so competition for UR and OBC seats is high.
- Paper difficulty: case-based and assertion-reason questions reduced the number of sure-shot attempts.
- Section-wise balance: students strong in Blood Banking and Microbiology gained an advantage this year.
- Answer key objections: any questions dropped or answers changed in the final key can shift marks by 1–2.
- Minimum qualifying marks: candidates must also clear the category-wise minimum qualifying percentage given in the notification.
BSF ASI Lab Technician Exam Pattern 2026
The written exam is one composite objective paper of 100 questions. The pattern of the 01 September 2026 CBT matched the official scheme exactly.
| Part | Subject | Questions | Marks |
|---|---|---|---|
| A | General Knowledge & Numerical Aptitude | 25 | 25 |
| B | Human Anatomy & Physiology | 25 | 25 |
| C | Professional Subjects – Biochemistry, Microbiology incl. Immunology, Haematology & Blood Banking, Histopathology incl. Clinical Pathology & Molecular Biology, Laboratory Management, Parasitology, Serology & Virology | 50 | 50 |
| Total | 100 | 100 | |
- Duration: 2 hours (120 minutes)
- Type: Objective multiple choice questions, 1 mark each
- Mode: Computer Based Test (CBT)
- Language: Hindi and English
BSF ASI Lab Technician Syllabus 2026
Below is the topic-wise syllabus for BSF ASI (Laboratory Technician), based on the official subject scheme and the topics actually asked in the 2026 paper.
Part A: General Knowledge & Numerical Aptitude
- General Knowledge: Indian Polity & Constitution, Modern Indian History, Indian & World Geography, Environment, Economy, Government Schemes, Current Affairs (national, international, defence exercises, important days)
- Numerical Aptitude: Number System, HCF & LCM, Percentage, Profit & Loss, Discount, Simple & Compound Interest, Ratio & Proportion, Partnership, Average, Time & Work, Pipes & Cistern, Time, Speed & Distance, Boat & Stream, Mensuration, Data Interpretation
Part B: Human Anatomy & Physiology
- Cell structure and organelles, tissues
- Skeletal & muscular system, joints and synovial fluid
- Blood – composition, RBC morphology, blood cells
- Cardiovascular, respiratory and lymphatic systems (heart, lungs, spleen, lymph nodes)
- Digestive system and liver
- Excretory (urinary) system
- Nervous system – spinal cord, reflex arc
- Endocrine glands and hormones
- Reproductive system (male and female)
- Skin and its appendages
Part C: Professional Subjects (Medical Laboratory Technology)
- Clinical Biochemistry: carbohydrates, proteins, lipids, enzymes, blood glucose, kidney & liver function tests, electrolytes, colorimetry and instruments
- Microbiology incl. Immunology: sterilization & disinfection, culture media, staining, bacteriology, antibiotic sensitivity, water bacteriology, mycology, antigen-antibody reactions, hypersensitivity, complement, vaccines
- Haematology & Blood Banking: Hb, TLC/DLC, peripheral smear, ESR, coagulation, anaemia, ABO & Rh grouping, crossmatching, anticoagulants, blood components, donor selection, blood bank storage and QC
- Histopathology incl. Clinical Pathology & Molecular Biology: tissue processing, fixation, microtomy, H&E staining, urine & body fluid examination, semen analysis, PCR basics
- Laboratory Management: quality control, specimen collection & transport, biosafety & biosafety cabinets, biomedical waste management, laboratory organisation, microscope care
- Parasitology, Serology & Virology: protozoa and helminths, stool examination, blood parasites, serological tests (ELISA, agglutination, HAI), viral structure, latency and viral specimen transport
Selection Process for BSF ASI Lab Technician
- Written Examination (CBT) – 100 marks; merit is prepared on the basis of written exam marks.
- Physical Standards Test (PST) – height 165 cm (male) / 150 cm (female), chest for male candidates.
- Physical Efficiency Test (PET) – qualifying in nature.
- Documentation – verification of 10+2 (Science) and DMLT certificates.
- Detailed Medical Examination (DME) – as per CAPF medical standards.
BSF ASI Lab Technician Answer Key & Result 2026
BSF releases the provisional answer key and candidate response sheet for its CBTs through the Objection Management Portal on rectt.bsf.gov.in, and candidates get a short window to raise objections. After considering objections, BSF prepares the final answer key and declares the result with the list of candidates shortlisted for the next stage.
- Visit the official BSF recruitment website rectt.bsf.gov.in.
- Open the answer key / objection management link for the 2nd Phase CBT (1–3 September 2026).
- Log in with your registration number / roll number and password (date of birth).
- Download your response sheet and match it with the provisional answer key.
- Calculate your score: +1 for each correct answer as per the exam scheme.
- Raise objections (if any) with proof before the last date.
Prepare for Lab Technician Exams with Testpaperlive Classes
Join our Lab Technician (DMLT / MLT) online batches for BSF, CAPF, RRB Paramedical, AIIMS CRE, ESIC, DSSSB and state-level exams — daily live classes at 3 PM, topic-wise MCQ practice, previous year question papers with solutions and full-length mock tests on the latest exam pattern. Call or WhatsApp us at +91-8078686728 for free counselling.
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Conclusion
The BSF ASI Lab Technician exam held on 01 September 2026 was a concept-based paper where Blood Banking, Immunology, Laboratory Management and Mycology decided the score. A total of 65–73 good attempts is a safe range, and the expected UR cut off is 62–63 marks. Download the question paper PDF, check your answers with the official BSF answer key, and keep preparing for the upcoming Lab Technician vacancies — the same topics are regularly repeated in RRB, AIIMS CRE, ESIC and state paramedical exams.
