What is SSC CHSL?

SSC CHSL (Staff Selection Commission Combined Higher Secondary Level Examination) is a national-level recruitment examination conducted by the Staff Selection Commission (SSC).

The examination recruits candidates for various Group C posts in Central Government offices.

Thousands of vacancies are announced every year across different ministries, constitutional bodies, tribunals, and government departments.

Posts Offered Through SSC CHSL

After qualifying the examination, candidates may be selected for posts such as:

These jobs offer stable careers, fixed working hours, and opportunities for promotion.

SSC CHSL Selection Process

The recruitment process consists of multiple stages.

Stage 1

Computer Based Examination (Tier 1)

↓

Stage 2

Computer Based Examination (Tier 2)

↓

Stage 3

Skill Test / Typing Test (Applicable for Certain Posts)

↓

Stage 4

Document Verification

The exact skill requirement depends on the post applied for. :contentReference[oaicite:1]{index=1}

SSC CHSL Tier 1 Exam Pattern

Tier 1 is an objective-type online examination.

Duration

• 60 Minutes
• 80 Minutes for eligible candidates using a scribe

Each question carries 2 marks. :contentReference[oaicite:2]{index=2}

Negative Marking

One of the most important things every candidate should know:

• Correct Answer → +2 Marks
• Wrong Answer → -0.50 Marks

Guesswork can reduce your overall score.

SSC CHSL Tier 1 Syllabus

The Tier 1 examination consists of four subjects.

Let's understand each section in detail.

1. General Intelligence & Reasoning

Reasoning checks your logical thinking and problem-solving ability.

It is one of the highest-scoring sections if practiced regularly.

Important Topics

Analogy

Questions based on relationships between words, numbers, or figures.

Example:

Teacher : School :: Doctor : ?

Classification

Find the odd one out.

Questions may be based on:

• Numbers
• Words
• Figures
• Alphabets

Series

Important types include:

• Number Series
• Alphabet Series
• Mixed Series
• Missing Term Series

Coding-Decoding

Common question types:

• Letter Coding
• Number Coding
• Matrix Coding
• Pattern Coding

Blood Relations

Understand family relationships using diagrams.

Frequently tested concepts:

• Father
• Mother
• Uncle
• Cousin
• Grandparents

Direction Sense

Questions include:

• North-South-East-West
• Left & Right Turns
• Shortest Distance

Seating Arrangement

Popular question types:

• Linear Arrangement
• Circular Arrangement
• Double Row Seating

Syllogism

Based on logical statements.

Learn:

• All
• Some
• No
• Conclusions

Venn Diagrams

Questions involve overlapping sets and logical classification.

Puzzle

Frequently asked puzzle types:

• Floor Puzzle
• Scheduling Puzzle
• Box Arrangement
• Ranking Puzzle

Other Important Topics

• Embedded Figures
• Mirror Images
• Paper Folding
• Cube & Dice
• Calendar
• Clock
• Figure Completion
• Non-Verbal Reasoning
• Critical Thinking
• Emotional Intelligence
• Word Building
• Coding & Decoding
• Number Classification
• Problem Solving :contentReference[oaicite:3]{index=3}

2. Quantitative Aptitude (Basic Arithmetic Skill)

This section evaluates numerical ability and calculation skills.

Many candidates find this section challenging, but regular practice makes a significant difference.

Number System

Topics include:

• Whole Numbers
• Decimals
• Fractions
• LCM & HCF

Percentage

Questions based on:

• Profit
• Discount
• Population
• Marks

Ratio & Proportion

Understand:

• Direct Proportion
• Inverse Proportion
• Partnership

Average

Questions involving:

• Simple Average
• Weighted Average

Profit & Loss

Important concepts:

• Cost Price
• Selling Price
• Marked Price
• Discount

Simple & Compound Interest

Practice numerical problems involving yearly and monthly calculations.

Time & Work

Questions include:

• Efficiency
• Pipes & Cisterns
• Combined Work

Time, Speed & Distance

Topics include:

• Relative Speed
• Trains
• Boats & Streams

Algebra

Important chapters:

• Linear Equations
• Basic Algebraic Identities
• Elementary Surds

Geometry

Prepare:

• Lines
• Angles
• Triangles
• Circles
• Quadrilaterals

Mensuration

Questions involve:

• Area
• Volume
• Surface Area
• Perimeter

Trigonometry

Basic school-level concepts such as:

• Heights & Distances
• Trigonometric Ratios

Statistics

Important concepts:

• Mean
• Median
• Mode
• Data Interpretation
• Probability

English Language Syllabus (Tier 1 & Tier 2)

The English section evaluates grammar, vocabulary, comprehension, and writing skills. Questions are designed to test how well candidates understand and use English in everyday communication.

Important Topics

• Reading Comprehension
• Spot the Error
• Fill in the Blanks
• Cloze Test
• Synonyms & Antonyms
• One Word Substitution
• Idioms & Phrases
• Sentence Improvement
• Active & Passive Voice
• Direct & Indirect Speech
• Para Jumbles
• Sentence Rearrangement
• Spelling Correction
• Vocabulary Usage :contentReference[oaicite:0]{index=0}

General Awareness Syllabus

This section checks your awareness of current events as well as basic knowledge of India and the world.

Current Affairs

Prepare topics from the last 6–8 months, including:

• National News
• International News
• Government Schemes
• Awards & Honours
• Important Appointments
• Science & Technology
• Sports
• Books & Authors

SSC CHSL Tier 2 Exam Pattern

Candidates who qualify Tier 1 appear for Tier 2, which is conducted as a computer-based examination. Tier 2 is divided into multiple sections and modules, with a separate Skill Test/Typing Test session for applicable posts. :contentReference[oaicite:1]{index=1}

Section I

Module I

Mathematical Abilities

Module II

Reasoning & General Intelligence

Section II

Module I

English Language & Comprehension

Module II

General Awareness

Section III

Module I

Computer Knowledge Test

Module II

Skill Test / Typing Test (depending on the post) :contentReference[oaicite:2]{index=2}

Computer Knowledge Syllabus

The Computer Knowledge module tests basic digital literacy.

Topics Covered

• Computer Fundamentals
• Input & Output Devices
• MS Word
• MS Excel
• MS PowerPoint
• Internet
• Email
• Computer Hardware
• Computer Software
• Operating Systems
• Memory Devices
• Networking Basics
• Cyber Security Basics

Candidates do not need advanced programming knowledge for this section.

Skill Test for Data Entry Operator (DEO)

Candidates applying for Data Entry Operator (DEO) posts are required to qualify the Skill Test.

The test evaluates the candidate's speed and accuracy in computerized data entry. The required speed is prescribed in the official notification and varies by post. :contentReference[oaicite:3]{index=3}

Typing Test

The Typing Test is conducted for posts such as:

• Lower Division Clerk (LDC)
• Junior Secretariat Assistant (JSA)
• Postal Assistant (PA)
• Sorting Assistant (SA)

Candidates are tested on their typing speed in either English or Hindi, depending on the option selected during the application process. The qualifying standards are specified in the official notification. :contentReference[oaicite:4]{index=4}