Bihar Police Constable Answer Key 2026: Comprehensive Executive Overview
The Central Selection Board of Constable (CSBC), Bihar (केंद्रीय चयन पर्षद (सिपाही भर्ती), बिहार) administers the landmark recruitment drive for 21,391 Constable vacancies under Advt. No. 01/2023. Following the successful, highly secure multi-phase written examination held across 38 administrative districts of Bihar, the Board publishes the official Provisional Answer Key and Shift-Wise Solved Question Paper Solutions on its dedicated governmental web portal (csbc.bihar.gov.in).
With over 18 lakh registered aspirants, the Bihar Police Constable examination is one of the most keenly tracked law enforcement recruitments in northern India. The official publication of the answer key is the decisive turning point in the recruitment lifecycle: it enables candidates to compare their marked OMR carbon responses against the official answer keys validated by the Board's panel of academic subject experts, compute their precise Written Test Raw Score, assess qualification prospects for the 5-times Physical Efficiency Test (PET), and submit online challenges with authentic references against erroneous question statements or disputed answer keys.
📌 केंद्रीय चयन पर्षद (सिपाही भर्ती) बिहार पुलिस उत्तर कुंजी मुख्य सारांश (Key Takeaways)
सीएसबीसी बिहार पुलिस 21,391 सिपाही भर्ती परीक्षा संपन्न होने के बाद आधिकारिक पोर्टल csbc.bihar.gov.in पर उत्तर कुंजी जारी की जाती है:
- अभ्यर्थी अपने रोल नंबर (Roll Number) अथवा आवेदन संख्या (Registration Number) एवं जन्मतिथि की सहायता से लॉग इन कर अपनी परीक्षा पाली (Shift) का मास्टर प्रश्न-पत्र व उत्तर कुंजी डाउनलोड कर सकते हैं।
- लिखित परीक्षा 100 वस्तुनिष्ठ प्रश्नों (MCQs) की होती है जिसमें कोई नकारात्मक अंकन (No Negative Marking) नहीं होता है। प्रत्येक सही उत्तर पर 1 अंक दिया जाता है।
- लिखित परीक्षा केवल क्वालिफाइंग (Qualifying) प्रकृति की है; अंतिम चयन सूची (Final Merit List) पूर्णतः शारीरिक दक्षता परीक्षा (PET - 100 अंक: दौड़, ऊंची कूद, गोला फेंक) के प्राप्तांकों पर तैयार की जाती है।
- यदि किसी प्रश्न या उत्तर कुंजी में त्रुटि पाई जाती है, तो निर्धारित समय सीमा के भीतर आधिकारिक वेबसाइट पर प्रामाणिक पाठ्यपुस्तकों के साक्ष्य के साथ ऑनलाइन आपत्ति (Objection) दर्ज की जा सकती है।
CSBC Bihar Police Constable Recruitment: Key Exam Profile
The institutional structure and statutory benchmarks governing the Bihar Police 21,391 Constabulary recruitment are summarized below:
| Recruitment Attribute | Official Statutory Specification |
|---|---|
| Recruitment Authority | Central Selection Board of Constable (CSBC), Patna, Bihar |
| Employment Advertisement No. | Advt. No. 01/2023 (सिपाही भर्ती) |
| Post Designation | Constable (District Police / Bihar Special Armed Police - BSAP / Other Units) |
| Total Number of Vacancies | 21,391 Posts (Historic Record Recruitment) |
| Examination Mode | Offline Pen-and-Paper (OMR Sheet with Carbon Duplicate Copy) |
| Total Questions & Maximum Marks | 100 Questions | 100 Maximum Marks (1 Mark per correct answer) |
| Negative Marking Penalty | NO Negative Marking (शून्य नकारात्मक अंकन) |
| Exam Duration | 2 Hours (120 Minutes) |
| Shortlisting Ratio for PET | 5 Times the Vacancy (Approx. 1,07,000 Candidates) |
| Final Selection / Merit Criterion | Purely on Physical Efficiency Test (PET - 100 Marks), Written Exam is only Qualifying (30% min) |
| Official Board Portal | https://csbc.bihar.gov.in/ |
How to Download Bihar Police Constable Answer Key 2026: Step-by-Step Guide
Candidates should execute the following official procedure on the CSBC portal to download shift-wise master question papers and answer keys:
- Visit the Official Portal: Open your web browser and navigate directly to https://csbc.bihar.gov.in/.
- Select 'Bihar Police' Tab: On the homepage tab bar, ensure the "Bihar Police" department tab is highlighted.
- Locate Answer Key Notification: Look for the notification titled "Important Notice: Regarding Provisional Answer Key and Invitation of Objections for Written Examination of Bihar Police Constable (Advt. No. 01/2023)".
- Access the Candidate Portal: Click on the direct answer key / objection login URL displayed within the circular.
- Enter Login Credentials: In the authentication window, input your CSBC Roll Number / Registration Number, Date of Birth (DD/MM/YYYY), and the security captcha code.
- Download Shift Master Paper & Key: Select your specific exam date and shift session to download the official Master Question Paper along with the provisional answer key PDF.
- Retrieve Carbon Copy OMR: Match the responses marked on your candidate OMR carbon copy retained during the examination against the official Master Key.
- Save and Print: Archive a digital PDF copy and print a hard copy for record preservation until completion of the recruitment cycle.
Bihar Police Written Exam Marking Scheme & Score Calculation Formula
Unlike central SSC or railway examinations, the Bihar Police Constable written test has a distinctive marking structure characterized by the total absence of negative marking:
| Evaluation Dimension | Prescribed Allocation | Procedural Rules & Board Guidelines |
|---|---|---|
| Correct Answer Credit | +1.0 Mark | Each correctly shaded bubble corresponding to the official master answer key receives exactly one mark. |
| Incorrect Answer Deduction | 0.00 Mark (Zero Penalty) | No negative marking is applied for incorrect answers or wrongful bubbling. |
| Unattempted Question | 0.00 Mark | Blank unshaded questions receive neither positive credit nor penalty. |
| Multiple Bubbled Options | 0.00 Mark | If a candidate darkens more than one circle for a single question, optical scanners flag it as invalid and award zero marks. |
| Statutory Minimum Qualifying Mark | 30% (30 Marks out of 100) | Candidates scoring less than 30 marks are summarily declared disqualified from participating in PET, regardless of vacancies. |
Bihar Police Written Score Mathematical Formula
Raw Written Score = Total Number of Correct Answers × 1.0
उदाहरण: यदि किसी अभ्यर्थी ने 100 प्रश्नों में से 74 सही उत्तर दिए हैं और 26 गलत किए हैं, तो उसका कुल प्राप्तांक 74 × 1.0 = 74 अंक होगा।
CSBC Bihar Police Constable Subject-Wise Question Weightage Analysis
The 100-question written examination is modeled on the Bihar School Examination Board (BSEB) Matriculation (Class 10th) curriculum:
| Curricular Subject | Question Count | Max Marks | Core Syllabus Topics & High-Yield Domains |
|---|---|---|---|
| General Science (सामान्य विज्ञान) | 30 – 35 Questions | 30 – 35 Marks | Physics (Optics, Electricity, Mechanics), Chemistry (Acids, Bases, Periodic Table, Metals), Biology (Human Anatomy, Vitamins, Photosynthesis, Genetics). Highest weightage section. |
| Social Science (सामाजिक अध्ययन) | 30 – 35 Questions | 30 – 35 Marks | Indian History (Ancient Magadha, 1857 Revolt in Bihar - Veer Kunwar Singh, Freedom Movement), Indian Polity (Constitution, Fundamental Rights, Panchayati Raj), Geography (River systems of Bihar, Agriculture, Minerals), Economics (Planning Commission, NITI Aayog). |
| General Hindi (सामान्य हिंदी) | 7 – 8 Questions | 7 – 8 Marks | संधि, समास, पर्यायवाची, विलोम शब्द, मुहावरे एवं लोकोक्तियां, वर्तनी शुद्धि, अनेक शब्दों के लिए एक शब्द, प्रमुख रचनाकार। |
| General English (अंग्रेजी) | 7 – 8 Questions | 7 – 8 Marks | Synonyms, Antonyms, Fill in the Blanks, Prepositions, Spotting the Errors, Voice, Direct-Indirect Speech, Spelling test. |
| Mathematics (गणित) | 10 Questions | 10 Marks | Number System, Percentage, Profit & Loss, Simple & Compound Interest, Ratio & Proportion, Time & Work, Speed & Distance, Mensuration. |
| Current Affairs & Bihar Special | 5 – 7 Questions | 5 – 7 Marks | Major Bihar state schemes (Saat Nischay, Har Ghar Nal Ka Jal), National and International Current Affairs, Awards, Sports summits. |
Online Objection Submission Protocol on CSBC Portal
If a candidate discovers that an official answer key published by CSBC contradicts established NCERT or Bihar State Text Book Publishing Corporation (BSTBPC) textbooks, they must submit a formal online challenge during the objection window:
- Log in to Objection Module: Navigate to the objection link on
csbc.bihar.gov.inusing your Roll Number and Date of Birth. - Identify Question Booklet Series: Confirm that your examination date, shift, and question booklet series (Series A, B, C, D) are accurately mapped.
- Select Disputed Question Number: Pick the specific question number you wish to challenge from the dropdown selector.
- State Candidate Contention: Specify whether the official answer key is wrong, whether multiple options are correct, or whether the question statement itself is defective or out of syllabus.
- Indicate Proposed Correct Option: Select your proposed correct alternative (A, B, C, or D).
- Upload Documentary Proof: Upload clear, legible scanned PDF/JPG copies of the authoritative textbook page (NCERT, BSEB textbook, standard author reference) highlighting the specific passage, author name, book title, and publication year. Coaching institute notes, study guides, and Wikipedia articles are strictly unacceptable.
- Review and Final Submission: Check all uploaded proofs and submit the representation. Note down the unique Objection Acknowledgment Reference Number.
Category-Wise Expected Written Test Qualifying Cutoff for PET Shortlisting (Out of 100 Marks)
Because CSBC shortlists candidates equal to 5 times the vacancies (approximately 1,07,000 candidates for 21,391 posts) for the Physical Efficiency Test (PET), written cutoff scores are based on category-wise reservation norms (35% horizontal reservation for Women across Bihar categories):
| Social Category | Male Projected Cutoff Range | Female Projected Cutoff Range | Safe Raw Score Target |
|---|---|---|---|
| General (Unreserved / UR) | 68 – 73 Marks | 52 – 57 Marks | 74+ Correct Answers |
| Economically Weaker Sections (EWS) | 60 – 65 Marks | 46 – 51 Marks | 66+ Correct Answers |
| Backward Class (BC / पिछड़ा वर्ग) | 65 – 70 Marks | 49 – 54 Marks | 71+ Correct Answers |
| Extremely Backward Class (EBC / अत्यंत पिछड़ा वर्ग) | 62 – 67 Marks | 44 – 49 Marks | 68+ Correct Answers |
| Scheduled Castes (SC / अनुसूचित जाति) | 56 – 61 Marks | 40 – 45 Marks | 62+ Correct Answers |
| Scheduled Tribes (ST / अनुसूचित जनजाति) | 58 – 63 Marks | 42 – 47 Marks | 64+ Correct Answers |
| BC Women (पिछड़े वर्गों की महिला - 3% Quota) | Not Applicable | 47 – 52 Marks | 53+ Correct Answers |
| Home Guards (गृह रक्षक कोटा - 50% Seats) | 40 – 48 Marks | 35 – 42 Marks | 45+ Correct Answers |
Crucial Understanding: Why Written Exam Marks DO NOT Count in Final Merit List
One of the most critical legal and regulatory aspects of the Bihar Police Constable recruitment that every candidate must understand is the nature of the written examination:
⚠️ महत्वपूर्ण नियम: लिखित परीक्षा केवल शारीरिक परीक्षा के लिए प्रवेश द्वार (Qualifying Gateway) है!
बिहार पुलिस सिपाही संवर्ग नियमावली के अनुसार, लिखित परीक्षा के प्राप्तांक अंतिम मेधा सूची (Final Merit List) में नहीं जोड़े जाते हैं।
- लिखित परीक्षा का उद्देश्य केवल शारीरिक दक्षता परीक्षा (PET) हेतु रिक्तियों के 5 गुना (लगभग 1,07,000) अभ्यर्थियों को छांटना (Shortlist) है।
- अंतिम चयन सूची (Final Selection) पूर्णतः शारीरिक दक्षता परीक्षा (PET) के कुल 100 अंकों में प्राप्त अंकों के आधार पर बनाई जाती है:
- दौड़ (Running): अधिकतम 50 अंक
- गोला फेंक (Shot Put): अधिकतम 25 अंक
- ऊंची कूद (High Jump): अधिकतम 25 अंक
- अतः यदि कोई अभ्यर्थी लिखित परीक्षा में 90 अंक भी प्राप्त करता है, लेकिन PET में न्यूनतम अंक लाता है, तो उसका चयन नहीं होगा। इसके विपरीत, लिखित परीक्षा में कट-ऑफ बॉर्डर पर पास होने वाला अभ्यर्थी यदि PET में 90+ अंक प्राप्त कर लेता है, तो वह फाइनल मेरिट लिस्ट में शीर्ष स्थान प्राप्त कर सकता है।
Physical Efficiency Test (PET - 100 Marks) Detailed Scoring System
Candidates who qualify the written cutoff determined via the official answer key must prepare vigorously for the 100-mark Physical Efficiency Test held at Shahid Khudi Ram Bose Central Jail Ground or Sanjay Gandhi Stadium, Patna:
1. Running Endurance Test (दौड़) - Maximum 50 Marks
Male Candidates: 1.6 Kilometers (1 Mile) within maximum 6 minutes.
| Time Duration Completed | Awarded Marks | Performance Standard Assessment |
|---|---|---|
| Less than 5 Minutes (5 मिनट से कम) | 50 Marks (Full Score) | Elite Athlete Performance - Guarantees selection in Final Merit List |
| 5 Minutes to 5 Minutes 20 Seconds | 40 Marks | Excellent Run Timing |
| 5 Minutes 20 Seconds to 5 Minutes 40 Seconds | 30 Marks | Above Average Run Timing |
| 5 Minutes 40 Seconds to 6 Minutes | 20 Marks | Borderline Qualifying Score |
| More than 6 Minutes | Disqualified (0 Marks) | Candidate is eliminated from recruitment on the spot. |
Female Candidates: 1.0 Kilometer within maximum 5 minutes.
| Time Duration Completed | Awarded Marks | Performance Standard Assessment |
|---|---|---|
| Less than 4 Minutes (4 मिनट से कम) | 50 Marks (Full Score) | Elite Performance |
| 4 Minutes to 4 Minutes 20 Seconds | 40 Marks | Excellent Timing |
| 4 Minutes 20 Seconds to 4 Minutes 40 Seconds | 30 Marks | Good Timing |
| 4 Minutes 40 Seconds to 5 Minutes | 20 Marks | Borderline Qualifying Score |
| More than 5 Minutes | Disqualified (0 Marks) | Eliminated on the spot |
2. Shot Put Throw (गोला फेंक) - Maximum 25 Marks
- Male Candidates (16-Pound Iron Ball / 7.25 kg):
- 16 to 17 feet throw: 9 Marks
- 17 to 18 feet throw: 13 Marks
- 18 to 19 feet throw: 17 Marks
- 19 to 20 feet throw: 21 Marks
- 20 feet and above: 25 Marks (Full Score)
- Less than 16 feet: Disqualified
- Female Candidates (12-Pound Iron Ball / 5.44 kg):
- 12 to 13 feet throw: 9 Marks
- 13 to 14 feet throw: 13 Marks
- 14 to 15 feet throw: 17 Marks
- 15 to 16 feet throw: 21 Marks
- 16 feet and above: 25 Marks (Full Score)
- Less than 12 feet: Disqualified
3. High Jump (ऊंची कूद) - Maximum 25 Marks
- Male Candidates (Minimum Baseline: 4 Feet):
- 4 Feet 0 Inches: 13 Marks
- 4 Feet 4 Inches: 17 Marks
- 4 Feet 8 Inches: 21 Marks
- 5 Feet 0 Inches and above: 25 Marks (Full Score)
- Less than 4 Feet: Disqualified
- Female Candidates (Minimum Baseline: 3 Feet):
- 3 Feet 0 Inches: 13 Marks
- 3 Feet 4 Inches: 17 Marks
- 3 Feet 8 Inches: 21 Marks
- 4 Feet 0 Inches and above: 25 Marks (Full Score)
- Less than 3 Feet: Disqualified
Physical Standard Test (PST) Mandatory Height & Chest Norms
Before participating in the physical efficiency events, candidate physical standards are verified using digital stadiometers:
| Social Reservation Category | Male Height | Male Chest (Unexpanded / Expanded) | Female Height & Minimum Weight |
|---|---|---|---|
| General (UR) / BC (पिछड़ा वर्ग) | 165 cm | 81 cm / 86 cm (5 cm expansion mandatory) | 155 cm (Weight: Min 48 kg) |
| Extremely Backward Class (EBC) | 160 cm | 81 cm / 86 cm (5 cm expansion mandatory) | 155 cm (Weight: Min 48 kg) |
| Scheduled Castes (SC) / ST | 160 cm | 79 cm / 84 cm (5 cm expansion mandatory) | 155 cm (Weight: Min 48 kg) |
| Gorkha Battalion (Home Guard) | 160 cm | 79 cm / 84 cm | 155 cm (Weight: Min 48 kg) |
नोट: सभी वर्गों की महिला अभ्यर्थियों के लिए न्यूनतम शारीरिक वजन 48 किलोग्राम होना अनिवार्य है। 48 किग्रा से कम वजन होने पर अयोग्य घोषित कर दिया जाता है।
Bihar Police Constable Salary Structure (Level-3 Pay Matrix)
Candidates who secure appointment under Advt. 01/2023 receive salaries governed by Level-3 of the Bihar State Pay Matrix:
| Salary Component | Statutory Computation Basis | Monthly Gross Allotment |
|---|---|---|
| Basic Pay (Pay Matrix Level-3) | Grade Pay ₹2,000/- baseline entry scale in Pay Scale ₹21,700 - ₹69,100 | ₹21,700/- |
| Dearness Allowance (DA) | Calculated at 50% of Basic Pay (State Govt. revised) | ₹10,850/- |
| House Rent Allowance (HRA) | Patna (16%: ₹3,472), District HQs (8%: ₹1,736), Rural (4%: ₹868) | ₹1,736 – ₹3,472/- |
| Medical Allowance (चिकित्सा भत्ता) | Fixed statutory monthly medical reimbursement | ₹1,000/- |
| Ration Subsidy / Food Allowance | Nutritional subsistence allowance for field duties | ₹1,500/- |
| Estimated Gross Salary | Before mandatory NPS (10%) and state insurance deductions | ₹36,786 – ₹38,522/- |
| Estimated Net In-Hand Salary | Net monthly credit directly to candidate bank account | ₹32,500 – ₹34,200/- |
Document Verification (DV) Checklist for Shortlisted Candidates
Candidates appearing for the Physical Screening must present original certificates along with two sets of self-attested photocopies:
- Valid Photo Identity Proof: Aadhaar Card, Voter ID Card, Driving License, or Passport in original.
- Educational Qualifications: Matriculation (Class 10th) Certificate and Marksheet (mandatory proof of Date of Birth); Intermediate (Class 12th) Marksheet and Passing Certificate issued on or before the statutory cutoff date.
- Caste & Creamy Layer Certificates:
- Backward Class (BC) & EBC: Non-Creamy Layer (NCL) Certificate issued by a competent Revenue Officer / Circle Officer (CO) in Bihar state.
- Scheduled Castes (SC) / ST: Permanent Caste Certificate issued by competent revenue authority.
- EWS Certificate: Income & Asset Certificate issued on Bihar State Government format for the relevant financial year.
- Bihar Domicile Certificate (स्थायी निवास प्रमाण पत्र): Mandatory for claiming any state reservation benefit. Candidates without a valid Bihar domicile certificate are treated as General (Unreserved).
- Home Guard Service Proof (गृह रक्षक प्रमाण पत्र): For candidates claiming the 50% Home Guard quota, valid basic training certificate and continuous service proof in Bihar Home Guards.
- Freedom Fighter Grandchildren Certificate: Issued by the District Magistrate of the concerned district.
Bihar Special Armed Police (BSAP) & District Police Battalion Allocation
Candidates clearing the written test and securing top ranks in the Physical Efficiency Test (PET) are allotted to various specialized wings and field units of the Bihar Police establishment:
| Police Cadre / Armed Wing | Primary Operational Mandate | Headquarters / Battalions | Merit & Choice Preference |
|---|---|---|---|
| District Executive Force (जिला पुलिस) | Station beat duties, investigation support, traffic management, law & order policing across 38 Bihar revenue districts. | All 38 District Police Lines | Top Choice for Most Candidates |
| Bihar Special Armed Police (BSAP - बिहार विशेष सशस्त्र पुलिस) | Armed reserve battalion force deployed for counter-insurgency, anti-naxal operations, riot containment, sensitive installation security. | 19 Battalions across Bihar (Bodh Gaya, Patna, Supaul, Katihar, etc.) | Rigorous Physical Training |
| Government Railway Police (GRP / रेल पुलिस) | Security of passenger trains, railway platforms, rail crime investigation across East Central Railway networks. | Patna, Muzaffarpur, and Jamalpur Rail Districts | Moderate Cutoff Baseline |
| Bihar Swabhiman Police Battalion (BSPB - महिला बटालियन) | Specialized armed battalion exclusively reserved for Scheduled Tribe women of Bihar, safeguarding forest frontiers and state installations. | Valmiki Nagar (West Champaran) | ST Female Candidates Exclusively |
Detailed Medical Examination (DME) Standards & Fitness Mandates
Following final merit qualification through the Physical Efficiency Test (PET), candidates must clear clinical evaluation conducted by the Civil Surgeon / Chief Medical Officer (CMO) Board:
- Visual Acuity (नेत्र परीक्षण): Distant vision must be 6/6 in one eye and not worse than 6/9 in the other eye without refractive corrective glasses. Squint eye (भेंगापन) or pathological nystagmus leads to immediate rejection.
- Color Blindness (वर्णांधता): Candidates are tested on the standard Ishihara Color Plate Chart. Any inability to distinguish red, green, or yellow hues results in permanent medical disqualification.
- Orthopedic & Musculoskeletal Examination:
- Knock Knee (नोक नी): When standing straight with feet joined together, knees must not touch or rub against each other.
- Flat Foot (सपाट पैर): Foot must have a pronounced medial longitudinal arch. Flat soles that contact the floor completely during wet-footprint testing fail the exam.
- Bow Legs (धनुषाकार पैर): Excessive gap between knees when ankles are in contact is disqualifying.
- Varicose Veins (नस फूलना): Tortuous superficial enlarged veins along the calf muscles are not permitted.
- Acoustic & Hearing Capability: Free from chronic ear discharge (CSOM), perforated tympanic membrane, or sensorineural hearing loss. Tested via conversational voice whisper test at 6 meters.
- Speech & Articulation: Clear speech delivery without severe stammering or stuttering that hinders emergency wireless communications.
High-Yield General Science 20-Point Topic Mastery Table
General Science is the decisive academic differentiator in CSBC written exams, accounting for 30 to 35 questions. Aspirants reviewing the answer key should observe the core conceptual areas frequently tested:
| Scientific Discipline | High-Frequency Syllabus Concepts | Weightage | Authoritative Textual Reference |
|---|---|---|---|
| Physics (भौतिक विज्ञान) | Newton's Laws of Motion, Work-Energy-Power theorems, Gravitational constant, Atmospheric pressure and barometers, Sound velocity across mediums, Light reflection-refraction, lenses and mirrors, Electric current and Ohm's law, Magnetic induction. | 10 – 12 Questions | NCERT Science Class 9th & 10th / BSEB Science Textbook. |
| Chemistry (रसायन विज्ञान) | Atomic structure, Modern Periodic Table trends (Electronegativity, Atomic Radii), Chemical bonding, Acids, Bases & Salts (pH value of blood, saliva, lemon), Metallurgy and common ores (Bauxite, Hematite), Hydrocarbons (Methane, LPG components). | 10 – 12 Questions | NCERT Chemistry Fundamentals (Class 9 & 10). |
| Biology (जीव विज्ञान) | Cellular organelles (Mitochondria, Ribosomes), Human digestive, circulatory, and nervous systems, Blood groups (ABO system, Rh factor), Vitamins and deficiency diseases (Scurvy, Beriberi, Rickets), Plant photosynthesis, Genetics and Mendel's laws. | 12 – 14 Questions | NCERT Biology Class 9th & 10th. |
Bihar History, Geography & Economy: Essential Examination Landmarks
State-specific questions in the Social Studies module often decide qualification margins. Candidates should verify the following historical benchmarks when auditing the master key:
- Ancient Magadha & Religious Foundations: Haryanka Dynasty (Bimbisara, Ajatashatru), Maurya Empire (Chandragupta Maurya, Ashoka's Rock Edicts), Nalanda University founded by Kumaragupta, Vikramshila University founded by Dharmapala; Life and teachings of Gautama Buddha (Bodh Gaya enlightenment) and Lord Mahavira (Pavapuri).
- Bihar's Role in Freedom Struggle: 1857 Revolt led by Babu Veer Kunwar Singh in Jagdishpur (Bhojpur); Champaran Satyagraha of 1917 initiated by Mahatma Gandhi on the invitation of Raj Kumar Shukla; Quit India Movement of 1942 and the heroic sacrifice of Seven Martyrs (सात शहीद) at Patna Secretariat.
- Physiography & River Systems: The Ganga enters Bihar at Chausa (Buxar) and divides the state into North Bihar and South Bihar plains; Major tributaries: Ghaghara, Gandak, Bagmati, Kamla-Balan, Kosi ("Sorrow of Bihar"), Mahananda from the north; Son, Punpun, Falgu, Kiul from the south.
- AI-Powered CCTV Video Live Feeds: Every examination hall is monitored in real-time via high-definition internet protocol (IP) cameras connected directly to the Central Command & Control Center at CSBC Headquarters in Patna.
- Mobile Signal Jammers: High-frequency cellular and Bluetooth frequency jammers are operational across examination centers to nullify any wireless transmission attempts.
- Digital Biometric Fingerprint & Iris Scanning: Candidate biometric signatures captured during entry are cross-matched with their OMR attendance rolls and are re-verified during PET and final joining to permanently eliminate impersonation (मुन्नाभाई / सॉल्वर गैंग).
- Dynamic QR-Coded Question Booklets: Every question booklet and carbon OMR sheet is encrypted with a unique invisible digital watermark and QR code linking each sheet directly to the designated candidate roll number.
- Verify Question Booklet Series: Ensure the Master Answer Key series (A, B, C, D) precisely aligns with the booklet series code imprinted on your candidate OMR carbon duplicate.
- Examine Roll Number Shading: Cross-check whether your Roll Number bubbles and Question Booklet Number bubbles were darkened clearly without dual marking.
- Count Absolute Correct Matches: Tally every question where your marked choice matches the Master Answer Key and add 1 point per match.
- Identify Incorrect Marks: Count questions where your marked option differs; confirm that no deductions are made, preserving your positive score.
- Flag Erroneous Questions: Highlight questions where the printed question statement contains typographical errors, flawed translation, or ambiguous choices.
- Collect Authoritative Evidence: Photocopy pages from NCERT or BSTBPC books with chapter title, author, edition year, and page number clearly visible.
- Submit Online Representation: Log into
csbc.bihar.gov.inbefore the expiration of the objection timer and upload your documentary evidence. - Save PDF of Submission: Download and archive the objection acknowledgment receipt displaying the unique transaction ID.
- Estimate Cutoff Probability: Match your raw marks against the category cutoffs listed above to evaluate your PET eligibility.
- Commence Physical Training: Immediately initiate physical conditioning (1.6 km run, high jump, shot put) at local district stadiums, as PET begins shortly after written results.
- Bihar Police Academy (राजगीर, नालंदा): Spanning over 133 acres in Rajgir, BPA is India's most modern state police training complex, equipped with automated indoor firing simulators, forensic crime scene simulation labs, synthetic athletic tracks, and equestrian training rings.
- Constables Training School (CTS Nathnagar, Bhagalpur): Historical training facility specializing in drill discipline, crowd dispersal techniques, VIP security escorts, and unarmed combat.
- Military Police Training Centre (BSAP-5, Patna): Provides tactical jungle warfare conditioning and anti-extremism armed combat drills for personnel assigned to Bihar Special Armed Police battalions.
- Academic Legal Curriculum: Recruits receive exhaustive training in modern criminal statutes—Bharatiya Nyaya Sanhita (BNS), Bharatiya Nagarik Suraksha Sanhita (BNSS), and Bharatiya Sakshya Adhiniyam (BSA)—along with cyber forensics, human rights sensitivity, and women/child protection laws.
- Thana Inquiry & Crime Record Check: The Station House Officer (SHO) of the candidate's home police station submits a detailed report verifying continuous peaceful residence and good neighborhood character.
- State CCTNS Criminal Database Cross-Referencing: Automated scanning across Bihar Police's CCTNS portal ensures no active FIR, chargesheet, or non-bailable warrant exists against the aspirant in any court of law.
- Notarized Character & Non-Conviction Affidavit: Candidates submit a registered legal affidavit stating they have never faced conviction in a criminal case or debarment from government service examinations.
- Headquarters Address: Central Selection Board of Constable (CSBC), Shri Krishna Nagar, Road No. 21, Near Patna Airport, Patna, Bihar - 800001.
- Helpdesk Phone Numbers:
0612-2233711,0612-2233712. - Official CSBC Web Portal: https://csbc.bihar.gov.in/.
- Helpdesk Working Hours: 10:00 AM to 05:00 PM on all official Bihar State Government working days.
CSBC Special Vigilance Unit (SVU) & Anti-Malpractice Security Apparatus
To preserve absolute examination sanctity across all 38 districts of Bihar, the Central Selection Board of Constable implements an impenetrable multi-tier security and surveillance grid:
10-Step OMR Sheet Verification & Post-Exam Audit Checklist
To ensure full accountability before submitting objections on the CSBC website, execute this 10-step verification audit:
Bihar Police Academy (BPA) Rajgir & 9-Month Basic Induction Training
Candidates securing appointment following the completion of PET and medical tests report to prestigious state police training institutions:
Character & Antecedent Police Verification Protocol in Bihar
Prior to issuance of the formal appointment letter (नियुक्ति पत्र), the District Magistrate (DM) and Superintendent of Police (SP) mandate a strict verification process:
Official CSBC Helpdesk & Grievance Directory
Candidates facing issues regarding answer key downloads, roll number mismatches, or objection submission can contact the central board:
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