Bihar Police CSBC Constable Posts - Complete Study Guide

A warm welcome, future Constables of Bihar!

This isn't just another study guide; this is your blueprint to success, meticulously crafted by top educators to ensure you don't just compete, but dominate the Bihar Police CSBC Constable examination. With the exam date set for June 24, 2026, you have ample time to build an unshakeable foundation and secure your dream uniform. This guide is designed to be your personal mentor, providing clarity, strategy, and unwavering support. Let's embark on this journey to excellence together.

1. Exam Overview

• Conducting Body: Central Selection Board of Constable (CSBC), Bihar
• Total Vacancies: [Verify from official notification at https://csbc.bih.nic.in/]
• Exam Type: State-level recruitment for Constable posts in Bihar Police
• Official Website: https://csbc.bih.nic.in/ - Your primary source for all official updates.

2. Eligibility Criteria

To be eligible for the Bihar Police CSBC Constable posts, candidates must meet the following criteria. Ensure you verify all details from the official notification.

• Age Limit (as on [Verify from official notification]):
  • General (UR) Candidates: 18 - 25 years
  • Backward Class (BC) / Extremely Backward Class (EBC) (Male): 18 - 27 years
  • Backward Class (BC) / Extremely Backward Class (EBC) (Female): 18 - 28 years
  • Scheduled Caste (SC) / Scheduled Tribe (ST) (Male & Female): 18 - 30 years
  • Bihar Home Guards: Age relaxation as per Bihar Government rules. [Verify from official notification]
• Educational Qualification (as on [Verify from official notification]):
  • 12th Pass (Intermediate) from a recognized Board/Council.
  • Candidates must possess the required educational qualification certificate by the application deadline.
• Physical Standards (Mandatory):
  • Height:
    • General/BC Male: 165 cm
    • EBC Male: 162 cm
    • SC/ST Male: 160 cm
    • All Categories Female: 155 cm
  • Chest (for Male candidates only):
    • General/BC/EBC: 81 cm (unexpanded) - 86 cm (expanded, minimum 5 cm expansion)
    • SC/ST: 79 cm (unexpanded) - 84 cm (expanded, minimum 5 cm expansion)
  • Weight:
    • For all categories of female candidates: Minimum 48 kg.
    • For male candidates: Proportionate to height.
  • Physical Efficiency Test (PET) Requirements:
    • Running:
      • Male: 1.6 km in 6 minutes
      • Female: 1 km in 5 minutes
    • Shot Put (Gola Fek):
      • Male: 16 pounds shot to be thrown 16 feet
      • Female: 12 pounds shot to be thrown 10 feet
    • Long Jump:
      • Male: 12 feet
      • Female: 9 feet
  • Medical Standards: Candidates must be medically fit as per the standards prescribed by CSBC. [Verify from official notification]
• Domicile: Candidates must be Indian citizens. Preference is given to Bihar domiciled candidates for reservation benefits.

3. Important Dates & Deadlines

Stay organized with these crucial dates. Mark them in your calendar and set reminders.

Event	Date
Application Start Date	[Verify from official notification]
Application End Date	2026-03-05
Fee Payment Deadline	[Verify from official notification]
Application Correction Window	[Verify from official notification]
Admit Card Release Date	[Verify from official notification - typically 10-15 days before exam]
Written Exam Date	2026-06-24
Written Exam Result Date	[Verify from official notification]
PET/PST Dates	[Verify from official notification]
Final Merit List Release	[Verify from official notification]

4. Exam Pattern & Selection Process

The selection process for Bihar Police CSBC Constable posts is a multi-stage process designed to assess candidates' written knowledge, physical fitness, and medical suitability.

Overall Selection Process:

1. Written Examination: This is the first stage and is qualifying in nature. Candidates must clear this to proceed to the next stage. The marks obtained in the written exam are NOT counted towards the final merit list.
2. Physical Efficiency Test (PET) / Physical Standard Test (PST): Candidates who qualify the written exam will be called for PET/PST. This stage is crucial as the final merit list is prepared based on the marks obtained in the PET.
3. Medical Examination & Document Verification: Candidates who clear the PET/PST will undergo a medical examination and document verification. This stage is qualifying.

Written Examination Pattern (Tier 1):

Tier/Stage	Subjects	Questions	Total Marks	Duration	Negative Marking
Written Exam	Hindi, English, General Knowledge, Current Affairs, Mathematics, Science	100	100	2 Hours	No

Key Points for Written Exam:

• The exam will be Objective Type (Multiple Choice Questions - MCQs).
• The standard of questions will be equivalent to the 10th class (Matriculation) level of the Bihar School Examination Board.
• Minimum qualifying marks for the written exam are 30%. Candidates scoring less than 30% will be disqualified.
• The number of candidates selected for PET/PST will be approximately 5 times the total number of vacancies.

5. Complete Detailed Syllabus

Mastering the syllabus is your first step towards success. We've broken down each subject with key topics, highlighting those that frequently appear in the exam.

General Knowledge & Current Affairs

• History: Ancient Indian History (Indus Valley Civilization, Vedic Period, Mauryan Empire, Gupta Empire), Medieval Indian History (Delhi Sultanate, Mughal Empire), Modern Indian History (Advent of Europeans, British Rule, Indian National Movement, Gandhi Era), World History (brief overview of major events).
• Geography: Indian Geography (Physical features, Rivers, Climate, Soil, Agriculture, Forests, Minerals, Industries, Population), World Geography (Continents, Oceans, Major mountains, Rivers, Deserts - basic knowledge).
• Indian Polity & Constitution: Preamble, Fundamental Rights & Duties, Directive Principles of State Policy, President, Parliament, Judiciary, Panchayati Raj, Constitutional Amendments, Sources of Indian Constitution.
• Indian Economy: Basic concepts of Economy, National Income, Planning in India, Poverty, Unemployment, Agriculture, Industry, Banking, Budget, Fiscal Policy.
• General Science (Physics, Chemistry, Biology):
  • Physics: Units & Dimensions, Motion, Force, Work, Energy, Power, Gravitation, Light, Sound, Electricity, Magnetism.
  • Chemistry: States of Matter, Atomic Structure, Acids, Bases & Salts, Metals & Non-metals, Chemical Reactions, Organic Chemistry (basic concepts).
  • Biology: Human Body Systems (Digestive, Respiratory, Circulatory, Nervous, Reproductive), Diseases & their causes, Nutrition, Plant Kingdom, Animal Kingdom, Ecology & Environment.
• Current Affairs: National & International Events, Awards & Honors, Sports, Important Government Schemes, Summits & Conferences, Books & Authors, Important Days, Science & Technology developments.
• Bihar Specific GK: History of Bihar, Geography of Bihar, Polity & Administration of Bihar, Economy of Bihar, Art & Culture of Bihar, Important Personalities of Bihar.

Key Insight: General Knowledge and Current Affairs form the largest section. Focus on Modern Indian History, Indian Polity, and core Biology topics. For Current Affairs, cover the last 6-8 months thoroughly, with special attention to Bihar-related news.

Hindi

• व्याकरण (Grammar): संज्ञा, सर्वनाम, विशेषण, क्रिया, क्रियाविशेषण, कारक, लिंग, वचन, काल, संधि, समास, उपसर्ग, प्रत्यय, पर्यायवाची शब्द, विलोम शब्द, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, वाक्य शुद्धि, वर्तनी शुद्धि.
• अपठित गद्यांश (Unseen Passage): Comprehension based on a given passage.
• रचना एवं रचनाकार (Authors and their works): Basic knowledge of famous Hindi literary works and authors.

English

• Grammar: Tenses, Articles, Prepositions, Conjunctions, Voice (Active/Passive), Narration (Direct/Indirect), Subject-Verb Agreement, Error Detection, Sentence Improvement.
• Vocabulary: Synonyms, Antonyms, One-word Substitution, Idioms & Phrases, Spelling Correction.
• Reading Comprehension: Questions based on an unseen passage.
• Sentence Rearrangement.

Key Insight: For both Hindi and English, a strong grasp of grammar rules and vocabulary is paramount. Practice daily to improve comprehension and accuracy.

Mathematics

• Arithmetic: Number System, Simplification, HCF & LCM, Ratio & Proportion, Percentage, Profit & Loss, Simple & Compound Interest, Time & Work, Time, Speed & Distance, Average.
• Algebra: Basic algebraic identities, Linear equations in one and two variables.
• Geometry: Basic concepts of lines, angles, triangles, quadrilaterals, circles, area, perimeter, volume (2D & 3D shapes).
• Mensuration: Area and Volume of basic geometrical figures (square, rectangle, circle, cylinder, cone, sphere).
• Data Interpretation: Basic bar graphs, pie charts, tabular data.

Science

• Physics: Units and Measurements, Mechanics (Motion, Force, Laws of Motion, Work, Energy, Power, Gravitation), Properties of Matter, Heat and Thermodynamics, Optics (Light - Reflection, Refraction), Electricity and Magnetism, Modern Physics (basic concepts).
• Chemistry: Atomic Structure, Chemical Bonding, States of Matter, Acids, Bases and Salts, Periodic Classification of Elements, Metals and Non-metals, Carbon and its Compounds, Chemical Reactions, Environmental Chemistry.
• Biology: Cell Biology, Genetics, Classification of Organisms, Human Physiology (Digestive, Respiratory, Circulatory, Nervous, Excretory, Endocrine, Reproductive Systems), Plant Physiology, Diseases and their Causes, Nutrition, Ecology and Environment.

Key Insight: The Science section will test your fundamental understanding up to the 10th-grade level. Prioritize Human Physiology in Biology, basic Mechanics and Optics in Physics, and Acids, Bases & Salts in Chemistry.

6. Previous Year Cutoffs

Understanding past trends helps set a realistic target. Please note that the following cutoff values are illustrative, as specific data was not provided. Always verify actual cutoffs from official CSBC notifications.

Year	UR (Male)	UR (Female)	OBC (Male)	OBC (Female)	SC (Male)	SC (Female)	ST (Male)	ST (Female)	EWS (Male)	EWS (Female)
2023	76	70	74	68	68	60	66	58	72	65
2022	75	69	73	67	67	59	65	57	71	64
2021	74	68	72	66	66	58	64	56	70	63

These values are illustrative and must be verified from official CSBC notifications at https://csbc.bih.nic.in/.

Safe Target Score: 80+ Marks

Aiming significantly above the previous year's cutoffs is critical. The competition is increasing every year, and a higher score in the written exam (even if qualifying) builds confidence for the next stages. More importantly, the PET marks determine your final selection. A strong performance in the written exam ensures you comfortably clear the first hurdle, allowing you to focus entirely on maximizing your PET score. Don't just aim to qualify; aim to excel!

7. Subject-wise Best Books

Choosing the right books is half the battle won. Here's a curated list of highly recommended resources.

| Subject | Book & Author | Publisher | Why This Book (Please note: The above table uses illustrative values for cutoffs as per the instructions. Actual cutoffs vary significantly based on various factors and must be verified from official notifications.)*

8. Free Authentic Study Resources

Leverage these excellent YouTube channels for conceptual clarity and practice.

• Khan GS Research Centre - Khan Sir - Comprehensive coverage of GS subjects (History, Geography, Polity, Science), Current Affairs. Excellent for conceptual understanding in Hindi medium. Watch Here
• Physics Wallah - UPSC Wallah - Various Educators - In-depth coverage of GS subjects, especially Science and Current Affairs. Useful for both Hindi and English medium students. Watch Here
• Utkarsh Classes Jodhpur - Nirmal Gehlot Sir & Team - Strong focus on General Knowledge, Current Affairs, and Hindi. Excellent for quick revisions and daily updates. Watch Here
• Adda247 - Various Educators - Daily Current Affairs, subject-specific quizzes, and strategy sessions for various government exams, including state police. Watch Here
• BYJU'S Exam Prep: SSC & Railways - Various Educators - Covers English Grammar, Reasoning, and Quantitative Aptitude fundamentals relevant to the 10th-grade level. Watch Here

9. 60-Day Preparation Strategy

With the exam on June 24, 2026, and assuming you're starting your serious preparation 60 days out, here's a high-impact, phased strategy to maximize your score.

Days 1-20 (Core Concepts): Build Your Foundation

This phase is about understanding the fundamentals and covering the entire syllabus systematically.

• Subject Focus: General Knowledge (History, Polity, Geography), Science (Biology first), Hindi Grammar.
• Daily Schedule:
  • Morning (3 hours): Pick one GS subject (e.g., History). Read from your chosen book (e.g., Lucent's GK) and make concise notes.
  • Afternoon (2 hours): Focus on Science (Biology). Read NCERTs (Class 9 & 10) or a standard science book.
  • Evening (2 hours): Dedicate to Hindi Grammar. Understand rules, practice basic questions.
  • Daily 1 hour: Current Affairs. Read a daily newspaper (e.g., Dainik Jagran, The Hindu) or follow a reliable current affairs compilation.
• Key Targets:
  • Complete at least 70% of the core syllabus for History, Polity, and Biology.
  • Master fundamental Hindi grammar rules.
  • Understand the basic concepts of each topic.
  • Create short, revision-friendly notes for every subject.

Days 21-40 (Practice & Subject Tests): Reinforce & Refine

Now that you have a conceptual base, it's time to apply that knowledge and identify weak areas.

• Subject Focus: Mathematics, English Grammar, remaining GS (Economy, Bihar GK), Physics, Chemistry.
• Daily Schedule:
  • Morning (2 hours): Mathematics practice. Solve at least 30-40 questions daily, focusing on one topic at a time (e.g., Percentage for 2 days, then Profit & Loss).
  • Afternoon (2 hours): English Grammar & Vocabulary. Practice error detection, fill-in-the-blanks, synonyms/antonyms. Read an English newspaper editorial.
  • Evening (3 hours): Remaining GS subjects (Economy, Bihar GK) and Science (Physics, Chemistry). Read and make notes. Take short subject-specific quizzes.
  • Daily 1 hour: Current Affairs revision and new updates.
• Key Targets:
  • Complete 100% of the syllabus for all subjects.
  • Solve at least 500+ questions in Mathematics and English combined.
  • Attempt 2-3 subject-specific mock tests per week (e.g., a full GK test, a full Science test).
  • Identify 2-3 weak topics in each subject and dedicate extra time to them.

Days 41-55 (Mock Tests & PYQs): Simulate & Strategize

This is the most critical phase. Regular mock tests and previous year's questions (PYQs) will hone your exam temperament and strategy.

• Subject Focus: All subjects, integrated.
• Daily Schedule:
  • Morning (2 hours): Attempt one full-length Mock Test or a Previous Year Question Paper (PYQ).
  • Afternoon (3 hours): Thorough analysis of the Mock Test/PYQ. Identify incorrect answers, understand why they were wrong, and revise the associated concepts. Note down time taken per section.
  • Evening (2 hours): Revision of weak areas identified from mock tests. Practice specific question types that you struggled with.
  • Daily 1 hour: Current Affairs revision.
• Key Targets:
  • Attempt at least 10-12 full-length mock tests in this period.
  • Analyze each mock test meticulously. This is more important than just attempting them.
  • Solve PYQs from the last 3-5 years of Bihar Police Constable exams.
  • Refine your time management strategy for the actual exam.
  • Aim to consistently score above your safe target score in mocks.

Days 56-60 (Final Revision & Exam Ready): Polish & Perform

The last few days are for consolidation, quick revision, and building a positive mindset.

• Subject Focus: Your self-made notes, high-weightage topics, and formulas.
• Daily Schedule:
  • Days 56-58: Rapid revision of all your short notes, highlighted points, formulas, and important facts. Do not start any new topics.
  • Day 59: Attempt one final, light mock test or just review a PYQ. Focus on boosting confidence. Revise Current Affairs of the last 2-3 months.
  • Day 60 (The day before exam): Light revision. Focus on staying calm, eating well, and getting adequate sleep. Do not study late into the night.
• Key Targets:
  • Consolidate all knowledge.
  • Boost confidence and maintain a positive attitude.
  • Ensure you are physically and mentally rested for the exam.
  • Gather all necessary documents (Admit Card, ID proof) and check exam center location.

10. Pro-Tips for Exam Day

Your performance on exam day is a culmination of your preparation and your ability to execute under pressure. Follow these pro-tips to ensure you perform at your peak.

1. Time Management is Paramount: The exam has 100 questions in 120 minutes. This means roughly 1.2 minutes per question. Do not get stuck on any single question. If a question takes more than 1 minute, mark it for review and move on. Prioritize subjects you are strong in first to build momentum.
2. Strategic Question Attempt: Scan the entire paper quickly. Start with your strongest sections (e.g., GK, Hindi, English) to gain confidence and save time. Tackle Mathematics and Science questions next, as they might require more calculation. Leave any very difficult or time-consuming questions for the end, if time permits.
3. Read Instructions Carefully: Before starting, take 5 minutes to read all instructions on the question paper and OMR sheet. Understand the marking scheme, duration, and any specific guidelines. A small mistake here can cost you dearly.
4. No Negative Marking - Attempt All: Since there is no negative marking, ensure you attempt all 100 questions. If you are unsure about an answer, make an educated guess. Even a 25% chance of being correct is better than leaving it blank.
5. Maintain Composure & Focus: The exam hall environment can be stressful. Breathe deeply, stay calm, and focus only on your paper. Don't get distracted by other candidates. Trust your preparation, and approach each question with a clear mind. Remember, this is your moment to shine!

11. Frequently Asked Questions (FAQs)

Q1: What is the minimum age limit to apply for Bihar Police Constable? The minimum age limit for General (UR) candidates is 18 years. Age relaxation is provided for OBC, EBC, SC, and ST categories as per Bihar Government rules. Please verify