BTSC Lab Assistant Syllabus 2026 and Exam Pattern, Check Subject-wise Topics

Bihar Technical Service Commission (BTSC) conducts the Bihar BTSC Lab Assistant exam to recruit candidates to government institutes under the Bihar state departments. Candidates preparing for the exam must know the syllabus and exam pattern for the discipline that they have chosen to apply to. By going through the syllabus, candidates get familiar with the subject-wise topics, which include the number of questions, marks distribution, duration, and marking scheme.

BTSC Lab Assistant Syllabus and Exam Pattern 2026

BTSC has announced 1,901 vacancies across 12 disciplines for the Lab Assistant recruitment. The exam structure for the post is designed in a way that it tests candidates’ scientific knowledge as well as technical-specific knowledge. As the selection mainly depends on the performance in the online test and work experience, candidates must make their preparation strategy accordingly. Familiarity with the syllabus will also help candidates to prioritise the high-weightage topics.

Bihar BTSC Lab Assistant Recruitment 2026 Notification Out for 1091 Posts – Click to Check

Bihar BTSC Lab Assistant Selection Process 2026

Candidates willing to get selected through BTSC recruitment have to undergo a three-stage selection process. The final selection will be based on candidates’ performance in the CBT and work experience.

1. Online Examination: In the first selection stage, questions are asked from science-based concepts and subject-specific knowledge. As this stage carries 75% weightage, performance in this round will determine the final selection.
2. Work Experience: Candidates with relevant experience in a laboratory or any technical role will be awarded marks. For this, candidates must have valid experience certificates. This stage carries 25% weightage for the final merit.
3. Document Verification: Candidates have to provide original documents of academics, work experience, age proof, category certificate and identity proof to verify their eligibility for the recruitment.

Bihar Lab Assistant Exam Pattern 2026

The Lab Assistant exam is conducted in online mode, containing 100 objective-type questions. In the exam, the question paper will be available in two languages, which include Hindi and English.

• Candidates will get 2 hours to finish the exam.
• The maximum marks of the exam are 100.
• Each question carries 1 mark.
• There will be a negative marking of 0.25 marks for each wrong answer.

Bihar BTSC Lab Assistant Syllabus 2026

The syllabus for the Lab Assistant has two parts, one of which is General Studies and the other is Technical-specific. The General Studies portion covers general awareness and current affairs. The Technical-specific portion is of diploma level. There are also science-related topics (Physics, Chemistry, and Biology), whose level is that of Class 12th Standard. The detailed syllabus of the Lab Assistant is given below:

BTSC Lab Assistant General Studies Syllabus

• Current Affairs (National & International)
• Indian Polity and Constitution
• Indian History and Culture
• Indian Geography and Bihar-specific Geography
• Indian Economy and Current Economic Developments
• Environmental Issues and Ecology
• Basic Computer Knowledge
• Scientific Developments and Inventions

BTSC Lab Assistant Physics Syllabus

• Work, Energy, and Power
• Gravitation and Properties of Matter
• Units and Measurements
• Motion (Kinematics) and Laws of Motion
• Oscillations and Waves
• Optics (Reflection, Refraction, and Optical Instruments)
• Modern Physics (Atoms, Nuclei, and Semiconductor Electronics)
• Thermodynamics and Heat
• Electricity and Magnetism

BTSC Lab Assistant Chemistry Syllabus

• Periodic Table and Periodicity in Properties
• Chemical Bonding and Molecular Structure
• Basic Concepts of Chemistry and Atomic Structure
• Chemical Equilibrium and Redox Reactions
• Organic Chemistry Basics and Hydrocarbons
• Environmental Chemistry
• States of Matter and Thermodynamics

BTSC Lab Assistant Biology Syllabus

• Diversity of Living Organisms
• Plant and Human Physiology
• Reproduction, Genetics, and Evolution
• Ecology and Environment
• Cell Structure and Function
• Human Health, Diseases, and Nutrition
• Biomolecules and Biotechnology Basics

BTSC Lab Assistant Technical-Specific Syllabus

Science Laboratory Assistant

Advanced questions from Physics, Chemistry, Biology, and basic laboratory techniques/safety.

Mechanical Engineering

Engineering Mechanics, Strength of Materials, Fluid Mechanics, Thermodynamics, Manufacturing Processes, Theory of Machines.

Civil / Rural Engineering

Building Materials, Surveying, Soil Mechanics, Concrete Technology, Environmental Engineering, Estimating & Costing.

Electrical / Electronics

Basic Electrical Engineering, Circuit Theory, Electrical Machines, Electronics Devices, Digital Electronics, Measurements.

Computer Science / IT

Programming Basics, Computer Networks, Operating Systems, Database Management, Data Structures.