Want to start your preparation for the SSC CHSL 2025 exam? Then you must first know the SSC CHSL syllabus and exam pattern. In this detailed article, you’ll find the complete topic-wise syllabus and the updated exam pattern for both Tier 1 (Qualifying) and Tier 2 (Merit-Deciding).
A summary of SSC CHSL Syllabus 2025 is provided below in a table format, including the selection process, sections including tier 1 and tier 2, and much more for the candidate’s convenience. Read the table carefully to know all the details.
| Organization | Staff Selection Commission (SSC) |
|---|---|
| Exam Name | SSC Combined Higher Secondary Level (CHSL) |
| Post | Lower Division Clerk (LDC), Junior Secretariat Assistant (JSA), Data Entry Operator (DEO) |
| Tier 1 Sections | General Intelligence, General Awareness, Quantitative Aptitude, English Language |
| Tier 2 Sections | Mathematical Abilities, Reasoning and General Intelligence, English Language and Comprehension, General Awareness, Computer Knowledge Module |
| Negative Marking | Tier 1: 0.50 marks for each incorrect answer Tier 2: 1 Mark for each wrong answer in Sections I, II, & Module I of Section III |
| Tier 1 Exam Date | From 12 November 2025 |
| Tier 2 Exam Date | To be announced (Tentatively January 2026) |
The SSC CHSL recruitment follows a two-stage examination process (Tier 1 and Tier 2), both conducted as Computer-Based Examinations (CBE). Tier 1 is mandatory and qualifying, while Tier 2 determines the final merit list, followed by a Skill Test/Typing Test for specific posts.
Tier 1 is the screening stage. It assesses foundational knowledge across four key sections and is qualifying in nature.
| Sections | No. of Questions | Maximum Marks | Time Allotted |
| English Language | 25 | 50 | 60 minutes (80 minutes for PwD candidates) |
| General Intelligence and Reasoning | 25 | 50 | |
| Quantitative Aptitude | 25 | 50 | |
| General Awareness | 25 | 50 | |
| Total | 100 | 200 |
The SSC CHSL Tier‑2 Exam Pattern 2025, presented in a tabular format for clarity. All details are based on the official 2025 revision as widely reported:
(Please note that Session‑II comprises qualifying tests only, and marks from Section‑III are not counted in merit):
| Session | Subject | Number of Questions | Maximum Marks | Time allowed |
| Session- I (2 hours and 15 minutes) | Section I: A: Mathematical Abilities (30 Questions) B: Reasoning and General Intelligence (30 Questions) | 60 | 60*3=180 | 1 hour (for each section)(1 hour and 20 minutes for the candidates eligible for scribe as per Para-7.1, 7.2 and 7.3) |
| Section-II: A: English Language and Comprehension (40 Questions) B: General Awareness (20 Questions) | 60 | 60*3=180 | ||
| Section-III: Computer Knowledge Test (15 Questions) | 15 | 15*3=45 | 15 Minutes(20 minutes for the candidates eligible for scribe as per Para-7.1, 7.2 and 7.3) | |
| Session- II | Section IV: Skill Test/ Typing Test | Part A: Skill Test for DEOs in the Department/ Ministry mentioned at Para 8.1 | – | 15 Minutes(20 minutes for the candidates eligible for scribe as per Para-7.1, 7.2 and 7.3) |
| Part B: Skill Test for DEOs except in the Department/ Ministry mentioned at Para 8.1 | – | 15 Minutes(20 minutes for the candidates eligible for scribe as per Para-7.1, 7.2 and 7.3) | ||
| Part C: Typing Test for LDC/ JSA. | – | 10 Minutes(15 minutes for the candidates eligible for scribe as per Para-7.1, 7.2 and 7.3) |
Here, we have provided the detailed syllabus for SSC CHSL Tier 1 and Tier 2 exams. You are advised to go through the syllabus carefully and start your preparation systematically.
SSC CHSL Tier 1 syllabus consists of four sections: English, Quant, General Awareness, and Reasoning. Here, we have provided the detailed tier 1 syllabus for all sections of the SSC CHSL 2025 exam. Go through this syllabus carefully and plan your study accordingly.
Reasoning
Check out the SSC CHSL Reasoning Syllabus provided below in a table format. It includes both verbal and non-verbal reasoning.
Check Detailed SSC CHSL Reasoning Syllabus
General Awareness
The SSC CHSL General Awareness syllabus consists of the knowledge of current affairs and the general knowledge of Indian history, constitution, geography, etc of the candidates. Stay updated with the current affairs if you want to excel in your preparation in this section.
Check Detailed SSC CHSL General Awareness Syllabus
Quantitative Aptitude
The SSC CHSL Quantitative Aptitude Syllabus includes topics from basic and advanced mathematics. Practice as much as possible, if you want to cover this section in the exam timely.
Check Detailed SSC CHSL Quantitative Aptitude Syllabus
English Comprehension
Here we have provided the SSC CHSL English Comprehension syllabus for the Tier 1 exam. The English section tests candidates’ knowledge of English Comprehension and Grammar.
Check Detailed SSC CHSL English Syllabus
The SSC CHSL 2025 Syllabus for Tier 2 exam is divided into modules, and these modules are further divided into sessions. Below, we have provided the detailed SSC CHSL Tier 2 syllabus.
Mathematical Abilities
Check out the detailed mathematical abilities syllabus for the Tier 2 exam.
| Subject | Topics |
| Number Systems | – Number Systems – Computation of Whole Numbers – Decimal and Fractions – Relationship Between Numbers |
| Arithmetic | – Percentages – Ratio and Proportion – Square Roots – Averages – Interest (Simple and Compound) – Profit and Loss – Discount – Partnership Business – Time and Distance – Time and Work |
| Algebra | – Basic Algebraic Identities – Elementary Surds – Graphs of Linear Equations |
| Geometry | – Elementary Geometric Figures – Triangles – Congruence and Similarity of Triangles – Circle and Their Properties – Tangents – Angles Subtended by Chords – Common Tangents to Circles |
| Mensuration | – Triangle – Quadrilaterals – Regular Polygons – Circle – Right Prism – Right Circular Cone – Right Circular Cylinder – Sphere – Hemispheres – Rectangular Parallelepiped – Regular Right Pyramid with Triangular or Square Base |
| Trigonometry | – Trigonometric Ratios – Complementary Angles – Height and Distances – Standard Identities |
| Statistics & Probability | – Use of Tables and Graphs – Histogram – Frequency Polygon – Bar-Diagram – Pie-Chart – Measures of Central Tendency (Mean, Median, Mode) – Standard Deviation – Calculation of Simple Probabilities |
Reasoning and General Intelligence
The general intelligence and reasoning syllabus for the tier 2 exam is provided below. The SSC asks questions from this section to test the candidates’ thinking and logical abilities.
English Language And Comprehension
Check out the English Language and Comprehension syllabus for the tier 2 exam. This is to check the basic English language understanding of the candidates.
General Awareness
Stay updated with current affairs. As per the expert suggestions, you must be updated with at least 6 months of current affairs. Make a study plan or timetable that consists of regular revision and study.
Computer Proficiency
Here we have provided the details syllabus for SSC CHSL computer proficiency subject. This subject is not included in the Tier 1 exam. So, candidates are advised to start the preparation for this subject in parallel with the Tier 1 exam so that they can avoid rushing during the preparation for the Tier 2 exam.
| Category | Key Topics Covered |
|---|---|
| Computer Basics | Organization of Computer, CPU, Input/Output Devices, Memory & Storage, Backup Devices, and PORTs |
| Windows Operating System & MS Office | Windows Explorer, Keyboard Shortcuts, MS Word, MS Excel, PowerPoint, File Management |
| Working with Internet & E-mails | Web Browsing & Searching, Downloading & Uploading, Managing Email Accounts, e-Banking, Internet Safety |
| Basics of Networking & Cybersecurity | Networking Devices & Protocols, Network Security Threats (Viruses, Trojans, Hacking), and Preventive Measures |
Choosing the right books is essential for scoring high in both Tier 1 and Tier 2. Below is the section-wise list of the most recommended books for SSC CHSL 2025 preparation.
| Section | Book Name | Author / Publication |
|---|---|---|
| Quantitative Aptitude | Quantitative Aptitude for Competitive Exams | R.S. Aggarwal |
| Fast Track Objective Arithmetic | Rajesh Verma (Arihant) | |
| SSC Mathematics | Kiran Publication | |
| Reasoning (General Intelligence) | A Modern Approach to Verbal & Non-Verbal Reasoning | R.S. Aggarwal |
| Analytical Reasoning | M.K. Pandey | |
| SSC Reasoning Chapter-wise Solved Papers | Kiran Publication | |
| English Language | Objective General English | S.P. Bakshi (Arihant) |
| Word Power Made Easy | Norman Lewis | |
| Plinth to Paramount – English | Neetu Singh (KD Publication) | |
| General Awareness | General Knowledge 2025 | Manohar Pandey (Arihant) |
| Lucent’s General Knowledge | Lucent Publication | |
| Monthly Current Affairs Magazine | Any (Adda247 / Vision / AffairsCloud) | |
| Computer Knowledge | Computer Awareness | Arihant Publication |
| Objective Computer Awareness | R. Pillai | |
| CCC Study Guide | NDLM/NIELIT Book |
Here we have provided the SSC CHSL topic-wise weightage based on the SSC CHSL syllabus 2025 and last year’s exam analysis. This will help you choose the most scoring topics, allowing you to prepare for the exam accordingly.
| Section | Topics | Weightage (Approx.) |
|---|---|---|
| General Intelligence & Reasoning | Analogy | 4-5 Questions |
| Classification | 3-4 Questions | |
| Series Completion | 5-6 Questions | |
| Coding-Decoding | 5-6 Questions | |
| Blood Relations | 3-4 Questions | |
| Directions | 2-3 Questions | |
| Mathematical Operations | 2-3 Questions | |
| Figure and Diagrammatic Analysis | 5-6 Questions | |
| Venn Diagrams | 2-3 Questions | |
| Syllogism | 2-3 Questions | |
| Non-Verbal Reasoning | 4-5 Questions | |
| Miscellaneous | 2-3 Questions | |
| Total Weightage | 25-30 Marks | |
| English Language | Reading Comprehension | 7-8 Questions |
| Spot the Error | 2-3 Questions | |
| Fill in the Blanks | 3-4 Questions | |
| Synonyms | 2-3 Questions | |
| Antonyms | 2-3 Questions | |
| Idioms & Phrases | 2-3 Questions | |
| One Word Substitution | 2-3 Questions | |
| Spelling/Word Correction | 2-3 Questions | |
| Active/Passive Voice | 1-2 Questions | |
| Direct/Indirect Speech | 1-2 Questions | |
| Total Weightage | 25-30 Marks | |
| Quantitative Aptitude | Number System | 3-4 Questions |
| Algebra | 3-4 Questions | |
| Arithmetic (Percentages, Profit and Loss, etc.) | 6-8 Questions | |
| Mensuration (2D and 3D) | 3-4 Questions | |
| Geometry | 4-5 Questions | |
| Trigonometry | 3-4 Questions | |
| Statistics | 3-4 Questions | |
| Speed, Time, and Distance | 2-3 Questions | |
| Work and Wages | 2-3 Questions | |
| Total Weightage | 25-30 Marks | |
| General Awareness | Current Affairs (National & International) | 5-6 Questions |
| History | 4-5 Questions | |
| Geography | 4-5 Questions | |
| Polity (Indian Constitution, Governance) | 3-4 Questions | |
| Economics (Basic concepts, Indian Economy) | 3-4 Questions | |
| Science (Physics, Chemistry, Biology) | 5-6 Questions | |
| Static GK (Books, Authors, Awards, etc.) | 3-4 Questions | |
| Environment & Ecology | 2-3 Questions | |
| Total Weightage | 25-30 Marks | |
| Overall Total | 100 Marks |
| Other Related Article SSC CHSL | |
| SSC CHSL Exam Pattern | SSC CHSL Study Plan |
| SSC CHSL Previous Year Question Paper | SSC CHSL Salary |
| SSC CHSL Cut Off | SSC Selection Process |
Read our blog carefully to learn about the SSC CHSL Syllabus.
The main sections in Tier 1 are General Intelligence, General Awareness, Quantitative Aptitude, and English Comprehension.
Yes, there is a negative marking of 0.5 marks for each incorrect answer in Tier 1.
Topics include current affairs, static general knowledge, science, history, culture, geography, and important schemes.
Key topics include simplification, percentage, average, ratio and proportion, algebra, trigonometry, and data interpretation.
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