The CSBC Bihar Police Constable (Operator) Exam is a state-level recruitment examination conducted by the Central Selection Board of Constable (CSBC) for the appointment of Constable (Operator) posts in the Bihar Police. This examination aims to select eligible candidates for technical roles in the police communication wing, where selected constables operate wireless and radio communication systems to ensure smooth coordination during law enforcement activities. It is an excellent opportunity for candidates who have completed their Intermediate (10+2) education, particularly in the Science stream, and aspire to join the Bihar Police in a technical capacity.
The selection process generally includes a written examination followed by a Physical Efficiency Test (PET) and document verification. The written exam tests candidates on subjects such as General Knowledge, Physics, Chemistry, and Mathematics. The post offers government job security, career growth, and attractive pay benefits under the state government service structure.
CSBC Bihar Police Constable (Operator): Overview Table
| Feature | Details |
| Conducting Authority | Central Selection Board of Constable (CSBC), Bihar |
| Post Name | Constable (Operator) |
| Advertisement Number | 02/2026 |
| Total Vacancies | 993 Posts |
| Application Start Date | March 01, 2026 |
| Application End Date | March 31, 2026 |
| Pay Scale | Level-3 (₹21,700 – ₹69,100) |
| Application Fee | ₹100 for all categories of candidates |
| Official Website | https://csbc.bihar.gov.in |
| Educational Qualification | Intermediate (10+2) in Science (Physics, Chemistry, Math) with minimum 50% marks (45% for SC/ST) |
CSBC Bihar Police Constable (Operator): Exam Pattern
The selection process is multi-staged, beginning with a Written Examination, followed by a Physical Efficiency Test (PET), and concluding with Document Verification. The written test serves as a critical screening round, and candidates must secure a minimum of 30% marks to be considered successful for the physical tests.
| Subject | Number of Questions | Maximum Marks | Educational Level |
| General Knowledge & Current Affairs | 25 Questions | 25 Marks | General Awareness |
| Physics | 25 Questions | 25 Marks | Intermediate (10+2) Level |
| Chemistry | 25 Questions | 25 Marks | Intermediate (10+2) Level |
| Mathematics | 25 Questions | 25 Marks | Intermediate (10+2) Level |
| Total | 100 Questions | 100 Marks | Duration: 2 Hours |
Key Written Exam Rules:
- The examination will be conducted entirely on OMR sheets.
- Each correct answer in the examination will be awarded exactly one (01) mark.
- For a comprehensive understanding of the science subjects, candidates are advised to refer to the official website of the Bihar School Examination Board.
CSBC Bihar Police Constable (Operator): Syllabus
| Subject | Detailed Topic-by-Topic Syllabus |
| General Knowledge & Current Affairs | Current Events: National and international news, recent state developments (Bihar-specific), sports, summits, and awards. Indian History: Ancient civilisations, the medieval order, the revolt of 1857, and the Indian National Movement. Geography: Physical geography of India, drainage systems, climate, and economic geography (resources and environment). Polity: The Indian Constitution, Judiciary, Union and State Executives, and Panchayati Raj. Economy: Basic micro/macroeconomics, Five-year plans, and current economic challenges in India and Bihar. |
| Physics (10+2 Level) | Electrostatics: Electric charges, fields, Gauss’s law, potential, and capacitance. Current Electricity: Ohm’s law, Kirchhoff’s laws, resistivity, and meter bridge. Magnetic Effects & Magnetism: Biot-Savart law, Ampere’s law, Earth’s magnetism, and torque. Electromagnetic Induction & AC: Faraday’s laws, Lenz’s law, LCR circuits, and transformers. Optics: Reflection, refraction, lens formula, interference, diffraction, and wave optics. Modern Physics: Dual nature of radiation, photoelectric effect, and de Broglie wavelength. Atoms & Nuclei: Radioactivity, Bohr model, atomic masses, and nuclear reactions. Electronic Devices: Semiconductors, p-n junctions, and logic gates. Communication Systems: Modulation, transmission, and communication mediums. |
| Chemistry (10+2 Level) | Physical Chemistry: Solid State, Solutions (colligative properties), Electrochemistry, Chemical Kinetics (rate laws), and Surface Chemistry. Inorganic Chemistry: General Principles of Isolation of Elements (Metallurgy), p-Block Elements, d- and f-Block Elements, and Coordination Compounds. Organic Chemistry: Haloalkanes and Haloarenes, Alcohols, Phenols and Ethers, Aldehydes, Ketones and Carboxylic Acids, and Amines. Applied Chemistry: Biomolecules (carbohydrates, proteins, DNA/RNA), Polymers (natural/synthetic), and Chemistry in Everyday Life (drugs, cleansing agents). |
| Mathematics (10+2 Level) | Algebra: Matrices and Determinants. Calculus: Continuity and Differentiability, Application of Derivatives, Integrals, Application of Integrals, and Differential Equations. Relations & Functions: Inverse Trigonometric Functions, types of relations (equivalence, symmetric, transitive). Vectors & 3D Geometry: Vector Algebra, direction cosines, lines, and planes. Linear Programming: Graphical method of solution for linear equations. Probability: Conditional probability, Bayes’ theorem, random variables, and binomial distribution. |
Preparation Tips
- Pivot to Core Sciences: Unlike general administrative exams (such as standard SSC or banking clerical exams) that heavily emphasize arithmetic and logical reasoning, this specialized Operator role demands strong conceptual knowledge in 10+2 level Science. Dedicate significant daily study hours to revising the fundamental concepts, formulas, and theories of Physics, Chemistry, and Mathematics.
- Master the Current Affairs: The General Knowledge and Current Affairs section holds 25% of the total exam weightage. Build a strict habit of reading a reliable daily newspaper and compiling monthly current affairs magazines to stay updated on national, international, and state-specific events.
- Physical Fitness is Non-Negotiable: Do not wait for the written exam results to start your physical training. The Physical Efficiency Test (PET) is mandatory and consists of a Run (1.6 km for men, 1 km for women in a maximum of 6 minutes), High Jump, and Shot Put. Candidates must pass each of these three events separately. Incorporate daily cardiovascular and strength training into your routine.
- OMR Accuracy Practice: Because the examination utilizes an OMR sheet format, it is crucial to practice filling out OMR bubbles accurately and quickly during your mock tests. This muscle memory prevents easily avoidable mistakes and helps manage time effectively on the actual exam day.
- Prepare Your Documentation Early: Ensure all your certificates, especially your caste, permanent residence (domicile), and non-creamy layer certificates (if applicable), are formally issued before the final application cut-off date of March 31.
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