The Bihar Police ASI (Operation) Examination is a prestigious competitive exam conducted by the Bihar Police Subordinate Services Commission (BPSSC) to recruit competent and technically skilled candidates for the post of Assistant Sub-Inspector (Operation). This examination aims to select individuals who possess strong analytical ability, sound knowledge of physics, and the physical fitness required for modern policing.
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The selection process is multi-staged, comprising a Preliminary Examination, a Main Examination, and a Physical Efficiency Test (PET). The prelims screen candidates through questions on General Knowledge, Current Affairs, and Physics, while the main examination emphasizes graduate-level Physics as the merit-deciding factor. A qualifying language paper ensures basic proficiency in Hindi and English. Along with academic excellence, candidates must demonstrate physical endurance and discipline during the PET. Overall, the BPSSC ASI (Operation) exam offers a respected career opportunity for aspirants seeking to serve society through law enforcement while applying scientific and operational expertise in policing.
Bihar Police ASI (Operation) Examination : Exam Overview
| Feature | Details |
| Organization | Bihar Police Subordinate Services Commission (BPSSC) |
| Post Name | Assistant Sub-Inspector (Operation) / Sahayak Avar Nirikshak (Prachalak) |
| Department | Bihar Police Radio (Wireless) |
| Total Vacancies | 462 |
| Pay Scale | Level-5 |
| Application Start Date | 04/02/2026 |
| Application End Date | 04/03/2026 |
| Educational Qualification | B.Sc in Physics (Min 50% marks; 45% for SC/ST) from a recognized university as of 01.08.2025 |
| Age Limit (as of 01.08.2025) | Gen (Male): 21-37 Years Gen (Female) / BC / EBC: 21-40 Years SC / ST: 21-42 Years |
| Application Fee | ₹100 for all categories |
Bihar Police ASI (Operation) Examination : Exam Pattern and Syllabus
The selection process is divided into three distinct phases: a Written Competition (two stages) and a Physical Efficiency Test.
Phase 1: Written Examination
The written exam consists of objective multiple-choice questions.
Preliminary Examination (100 Marks / 2 Hours)
| Stage / Exam | Details |
| Preliminary Examination | Total Marks: 100 Duration: 2 Hours |
| Composition | General Knowledge & Current Affairs – 40 Questions Physics – 60 Questions |
| Standard | Graduate-level Science |
| Qualifying Marks | Minimum 30% (Failing leads to disqualification) |
| Selection for Mains | 20× the number of vacancies, based on merit |
| Negative Marking | 0.2 marks deducted for each wrong answer |
Main Examination (Two Papers)
| Paper | Subject | Marks | Duration | Standard / Remarks |
| Paper I | Hindi (50) + English (50) | 100 | 1.5 Hours | Intermediate level Qualifying only (Min 30 marks required; not added to merit) |
| Paper II | Physics | 100 | 3 Hours | Graduate level Merit-deciding paper |
| Negative Marking | colspan | 0.2 marks per wrong answer (both Prelims & Mains) |
Phase 2: Physical Efficiency Test (PET)
This stage is qualifying in nature; no marks are awarded, but failing any event leads to disqualification.
| Event | Men | Women |
| Run | 1.6 km (1 mile) in max 7 min | 1 km in max 7 min |
| High Jump | Minimum 3 ft 6 in | Minimum 2 ft 6 in |
| Long Jump | Minimum 10 ft | Minimum 7 ft |
| Shot Put | 16 lb shot – min 14 ft | 12 lb shot – min 8 ft |
Bihar Police ASI (Operation) Examination : Syllabus
Part A: General Knowledge & Current Affairs (40 Questions)
Focus: General awareness with special emphasis on Bihar.
| Subject | Detailed Topics |
| Current Affairs | • National & International Events (Last 6-8 months) • Awards & Honors (Nobel, Padma Awards, etc.) • Sports (Olympics, Cricket, National Games) • Summits & Conferences (G20, BRICS, etc.) • Books & Authors • Defense Exercises & Science Tech Updates |
| Bihar Special | • History of Bihar (Ancient, Medieval, Modern) • Geography of Bihar (Rivers, Soil, Monsoon) • Bihar Govt Schemes (Saat Nischay, Jeevika, etc.) • Census 2011 (Bihar specific data) |
| Indian History | • Ancient: Indus Valley, Buddhism/Jainism, Mauryan & Gupta Empire. • Medieval: Delhi Sultanate, Mughal Empire. • Modern: 1857 Revolt, Gandhian Era, Freedom Struggle. |
| Geography | • Solar System & Universe. • Indian Geography (Physical features, Rivers, Mountains). • Agriculture & Minerals in India. |
| Polity | • Preamble & Schedules. • Fundamental Rights & Duties. • President, Parliament, & Supreme Court. • Panchayati Raj System. |
Part B: Physics (60 Questions)
Level: Graduate (B.Sc.) Level
| Unit | Detailed Topics |
| Mechanics | • Units & Dimensions. • Conservation Laws (Energy, Momentum, Angular Momentum). • Rotational Dynamics (Moment of Inertia). • Gravitation (Kepler’s Laws, Escape Velocity). • Elasticity (Stress, Strain, Young’s Modulus). • Surface Tension & Viscosity (Bernoulli’s Theorem). |
| Waves & Oscillations | • Simple Harmonic Motion (SHM). • Damped & Forced Oscillations. • Sound Waves (Doppler Effect, Ultrasonic waves). |
| Heat & Thermodynamics | • Laws of Thermodynamics (Zeroth, 1st, 2nd, 3rd). • Kinetic Theory of Gases. • Entropy & Enthalpy. • Heat Engines (Carnot Cycle, Efficiency). • Thermal Conductivity. |
| Optics | • Geometrical: Reflection, Refraction, Lenses, Mirrors. • Physical: Interference (Young’s Double Slit), Diffraction, Polarization. • Lasers (Basic principles). |
| Electricity & Magnetism | • Electrostatics (Gauss’s Law, Capacitors). • Current Electricity (Kirchhoff’s Laws, Wheatstone Bridge). • Magnetism (Biot-Savart Law, Ampere’s Law). • EMI (Faraday’s Law, Lenz’s Law). • AC Circuits (LCR Circuits, Resonance). |
| Modern Physics | • Photoelectric Effect. • Atomic Models (Bohr’s Model). • X-Rays & Compton Effect. • Nuclear Physics (Radioactivity, Fission, Fusion). • Dual Nature of Matter (De Broglie wavelength). |
| Electronics | • Semiconductors (Intrinsic/Extrinsic). • PN Junction Diode (Rectifiers). • Transistors (BJT basics). • Logic Gates (AND, OR, NOT, NAND, NOR). |
Phase 2: Main Examination Syllabus
Paper I: General Hindi & English (Qualifying)
Level: Intermediate (12th) Level. You need 30% marks to qualify.
| Subject (50 Marks Each) | Detailed Topics |
| General Hindi | • व्याकरण (Grammar): संधि (Sandhi), समास (Samas), कारक (Case), उपसर्ग-प्रत्यय (Prefix/Suffix). • शब्द भंडार (Vocabulary): पर्यायवाची (Synonyms), विलोम (Antonyms), तत्सम-तद्भव. • वाक्य (Sentence): वाक्य शुद्धि (Sentence Correction), मुहावरे और लोकोक्तियाँ (Idioms). • रचना (Composition): अपठित गद्यांश (Reading Comprehension). |
| General English | • Grammar: Parts of Speech, Tenses, Voice (Active/Passive), Narration (Direct/Indirect). • Vocabulary: Synonyms, Antonyms, One Word Substitution, Spelling Correction. • Usage: Idioms & Phrases, Fill in the Blanks. • Comprehension: Reading passages and answering questions. |
Paper II: Physics (Merit Decider)
Level: Advanced Graduate Level. This paper determines your rank.
| Advanced Unit | Detailed Topics (B.Sc. Level Depth) |
| Classical Mechanics | • Lagrangian & Hamiltonian formulations. • Central Force Motion. • Special Theory of Relativity (Lorentz transformation, Length contraction, Time dilation). |
| Quantum Mechanics | • Wave-particle duality. • Heisenberg Uncertainty Principle. • Schrodinger Equation (Time-dependent/independent). • Operators & Expectation values. |
| Statistical Mechanics | • Maxwell-Boltzmann Statistics. • Bose-Einstein Statistics. • Fermi-Dirac Statistics. |
| Electrodynamics | • Maxwell’s Equations (Integral & Differential forms). • Electromagnetic Waves (Poynting Vector). • Dielectrics & Polarization. |
| Solid State Physics | • Crystal Structure (Bravais Lattices). • X-ray Diffraction (Bragg’s Law). • Band Theory of Solids. |
| Digital Electronics | • Number Systems (Binary, Octal, Hexadecimal). • Boolean Algebra. • Operational Amplifiers (Op-Amp basics). |
Detailed Preparation Tips
1. Academic Preparation Strategy
| Subject / Section | Detailed Strategy | Actionable Steps |
| Physics (The Core) | Since 60% of Prelims and 100% of Mains Paper II is Physics, this is the most critical section. The syllabus is Graduate Level. | • Syllabus Mapping: Download the B.Sc Physics syllabus of major Bihar universities to understand the scope. • Concept Refresh: Revisit core topics like Mechanics, Electromagnetism, Optics, and Thermodynamics. • Numerical Practice: Solve graduate-level numerical problems daily, as the exam is objective. • Previous Papers: If available, solve previous BPSSC technical papers to gauge difficulty. |
| General Knowledge | This forms 40% of the Prelims. Do not ignore it, as it is essential for clearing the initial cutoff. | • Current Affairs: Focus on the last 6-8 months of national and Bihar-specific news. • Static GK: Study basics of History, Geography, and Indian Polity. • Bihar Special: Read about Bihar’s geography and recent government schemes. |
| Language (Hindi/Eng) | This is only qualifying, but failing here disqualifies you from the main evaluation. | • Grammar Basics: Spend 30 minutes a week reviewing basic Hindi and English grammar (Sandhi, Samas, Antonyms, Synonyms). • Practice: Solve 2-3 previous year qualifying papers to ensure you can easily cross the 30% mark. |
| Negative Marking | There is a 0.2 mark deduction for wrong answers. | • Accuracy Training: When taking mock tests, avoid wild guessing. Calculate your accuracy percentage and aim to keep it above 90%. |
2. Physical & Application Strategy
| Component | Detailed Strategy | Actionable Steps |
| Physical Fitness | The physical standards are strict. You must clear the run, jumps, and shot put . | • Start Now: Do not wait for the written result. Begin running 2-3 km daily to build stamina. • Technique: Practice the technique for High Jump and Shot Put to avoid fouling out. • Timed Runs: Once a week, time your 1.6km/1km run to ensure you are well within the 7-minute limit. |
| Application Form | Mistakes in the application can lead to rejection. | • Documents: Ensure you have your B.Sc degree and caste certificate ready before applying. • Photo/Sign: Upload a white background photo (colored) and signatures in both Hindi and English . • Review: Use the “Edit Details” button to double-check every entry before final submission. |
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