SSC CHSL 2026 Syllabus

From the official Staff Selection Commission (SSC), Government of India documents · last checked 8 October 2026

Tier-I

Verbal and non-verbal reasoning
Semantic, symbolic/number and figural analogy
Semantic, symbolic/number and figural classification
Semantic, number and figural series
Symbolic and numerical operations, trends
Space orientation, Venn diagrams, drawing inferences
Punched hole / pattern folding and unfolding; figural pattern folding and completion
Embedded figures
Coding and decoding, word building
Critical thinking, problem solving
Emotional intelligence, social intelligence

Number systems: whole numbers, decimals, fractions and number relationships
Percentage, ratio and proportion, square roots, averages
Simple and compound interest, profit and loss, discount, partnership
Mixture and alligation, time and distance, time and work
Algebra: basic identities of school algebra, elementary surds, graphs of linear equations
Geometry: triangles and their centres; congruence and similarity; circles, chords, tangents, common tangents
Mensuration: triangle, quadrilaterals, regular polygons, circle, right prism, cone, cylinder, sphere, hemisphere, cuboid, pyramid
Trigonometry: ratios, complementary angles, heights and distances (simple problems), standard identities
Statistical charts: tables and graphs, histogram, frequency polygon, bar diagram, pie chart

Number systems: whole numbers, decimals, fractions
Percentages, ratio and proportion, square roots, averages
Simple and compound interest, profit and loss, discount, partnership
Mixture and alligation, time and distance, time and work
Algebra: basic identities, elementary surds, graphs of linear equations
Geometry: triangle centres, congruence and similarity, circles, chords, tangents
Mensuration: 2D and 3D figures (prism, cone, cylinder, sphere, hemisphere, cuboid, pyramid)
Trigonometry: ratios, complementary angles, heights and distances, standard identities
Statistics and probability: tables and graphs, mean, median, mode, standard deviation, simple probability

Semantic, symbolic/number and figural analogy
Semantic, symbolic/number and figural classification
Semantic, number and figural series
Symbolic and numerical operations, trends
Space orientation, Venn diagrams, drawing inferences
Punched hole / pattern folding and unfolding, figure completion, embedded figures
Coding and decoding, word building, problem solving
Critical thinking, emotional intelligence, social intelligence

Vocabulary, grammar and sentence structure
Synonyms, antonyms, homonyms and their correct use
Spot the error, fill in the blanks
Spellings and misspelt words
Idioms and phrases, one-word substitution
Improvement of sentences
Active and passive voice
Direct and indirect narration
Shuffling of sentence parts and of sentences in a passage
Cloze passage
Reading comprehension: two or more passages (at least one simple story-type, one based on a current affairs editorial or report)

Computer basics: organisation of a computer, CPU, input/output devices, memory, backup devices, ports, Windows Explorer, keyboard shortcuts
Software: Windows operating system, MS Word, MS Excel, PowerPoint
Internet and e-mail: browsing, searching, downloading and uploading, managing an e-mail account, e-banking
Networking and cyber security: devices and protocols, threats such as hacking, viruses, worms and Trojans, and how to prevent them

DEO posts: data entry of an English passage on computer in 15 minutes (8,000 or 15,000 key depressions per hour, depending on the post)
LDC/JSA: typing test of 10 minutes at 35 words per minute (English) or 30 words per minute (Hindi, Mangal font)

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