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Staff Selection Commission

SSC CGL & CHSL Preparation Guide

A complete blueprint of postings, career profiles, salaries, eligibility criteria, exam patterns and the comprehensive syllabus for SSC Combined Graduate Level (CGL) and Combined Higher Secondary Level (CHSL).

Section I · SSC CGL

Postings, Job Profiles & Salary Matrix

SSC CGL offers recruitment into highly sought-after Group 'B' and Group 'C' posts within major Central Government Ministries, Departments and Intelligence Organisations. Salaries are governed by the 7th Central Pay Commission (CPC) Pay Matrix, ranging from Pay Level 4 to Pay Level 8.

Pay LevelKey Associated PostsBasic Pay RangeApprox. Gross (X Cities)
Level 8Assistant Audit Officer (AAO), Assistant Accounts Officer (CAG Departments)Rs. 47,600 – 1,51,100Rs. 86,000+
Level 7Assistant Section Officer (CSS, MEA, IB, MoD), Inspector of Income Tax, Inspector (Central Excise, Preventive Officer, Examiner in CBIC), Enforcement Officer (ED), Sub-Inspector (CBI)Rs. 44,900 – 1,42,400Rs. 80,000+
Level 6Assistant / Superintendent, Divisional Accountant (under CAG), Sub-Inspector (NIA), Junior Statistical Officer (JSO)Rs. 35,400 – 1,12,400Rs. 66,000+
Level 5Auditor (CAG, CGDA Ministries), Accountant / Junior Accountant (Ministries)Rs. 29,200 – 92,300Rs. 55,000+
Level 4Postal Assistant / Sorting Assistant, Senior Secretariat Assistant, Tax Assistant (CBDT/CBIC), Sub-Inspector (Central Bureau of Narcotics)Rs. 25,500 – 81,100Rs. 48,000+
SSC CGL

Eligibility Criteria

  • Age Limits: Varies by post — typically 18 to 30 years or 20 to 30 years. For Junior Statistical Officer (JSO), the maximum age limit is extendable up to 32 years. Age relaxations apply per government standards (5 years for SC/ST, 3 years for OBC, 10 years for PwD).
  • Educational Qualifications: A Bachelor's degree from a recognized university (or equivalent) is mandatory for all posts at document verification. Specific qualifications apply for:
    • Junior Statistical Officer (JSO): Bachelor's Degree in any subject with at least 60% marks in Mathematics at 12th level, OR a Bachelor's Degree with Statistics as one of the subjects at graduation level.
    • Assistant Audit Officer / Assistant Accounts Officer: Chartered Accountant, Cost & Management Accountant, Company Secretary, or Masters in Commerce / Business Studies as a preferred desirable qualification.
SSC CGL

Examination Pattern

The SSC CGL examination is organized into two primary computerized tiers. Tier 1 is a qualifying screening stage, whereas Tier 2 forms the absolute merit metrics used for final selection.

Tier 1: Preliminary Examination (Qualifying Only)

Subject SectionQuestionsMax MarksSectional Time Limits
General Intelligence & Reasoning2550 Marks15 Minutes
General Awareness (Static GK + CA)2550 Marks15 Minutes
Quantitative Aptitude (Arithmetic + Adv)2550 Marks15 Minutes
English Comprehension2550 Marks15 Minutes
Total Metric Summary100 Qs200 Marks60 Minutes (1 Hour Total)
Negative Marking: Penalty of 0.50 marks for every wrong answer in Tier 1. Sectional timers are enforced at 15 minutes per section.

Tier 2: Mains Merit Examination (Compulsory Paper 1 Structure)

Tier 2 consists of Paper 1, mandatory for all candidates, split into sessions and modules with targeted weights and sectional timings.

Session / SectionModule SubjectQuestionsMarks SchemeTime Allotted
Session 1: Section IMod I: Mathematical Abilities
Mod II: Reasoning & Gen Intelligence
30 Qs
30 Qs
90 Marks (3/Q)
90 Marks (3/Q)
60 Minutes total (30 mins per subject)
Session 1: Section IIMod I: English Language & Comp
Mod II: General Awareness
45 Qs
25 Qs
135 Marks (3/Q)
75 Marks (3/Q)
60 Minutes total (40m English, 20m GA)
Session 1: Section IIIMod I: Computer Knowledge Test20 Qs60 Marks (3/Q)15 Minutes (Qualifying)
Session 2: Section IVMod II: Data Entry Speed Test (DEST)1 Passage (~2000 key depressions)Qualifying Nature15 Minutes (Mandatory)
Negative Marking in Tier 2: 1 mark deducted for each incorrect answer in Paper 1 sections. Specialized Optional Papers: Paper II (Statistics — 100 Qs, 200 Marks, 2 Hours) applies only to JSO candidates. Paper III (General Studies: Finance & Economics — 100 Qs, 200 Marks, 2 Hours) applies only to AAO candidates.
SSC CGL

Subject-Wise Syllabus (Tiers 1 & 2 Combined Matrix)

Quantitative Aptitude & Mathematical Abilities

Number Systems (whole numbers, decimals, fractions, relationships). Fundamental Arithmetical Operations (percentages, ratio & proportion, square roots, averages, simple & compound interest, profit & loss, discount, partnership, mixtures & alligation, time & distance, time & work). Algebra (basic identities, elementary surds, linear equations graphs). Geometry (triangles, centres of triangles, congruence, similarity, circles, chords, tangents, angles subtended by chords). Mensuration (regular polygons, prisms, cones, cylinders, spheres, hemispheres, rectangular parallelepipeds, pyramids). Trigonometry (ratios, complementary angles, standard identities, basic height & distance). Statistics and Probability (histogram, frequency polygon, bar diagrams, pie charts; mean, median, mode, standard deviation; simple probabilities).

General Intelligence & Reasoning

Verbal and Non-Verbal reasoning. Analogies, similarities & differences, space visualization, spatial orientation, problem-solving, analysis, judgment, decision making, visual memory, discrimination, observation, blood relations, arithmetical reasoning, figural classification, number series, non-verbal series, coding-decoding, statement conclusions, syllogistic reasoning, semantic analogy, symbolic operations, Venn diagrams, punched hole/pattern folding & unfolding, critical thinking, embedded figures, emotional intelligence, social intelligence.

English Language & Comprehension

Spot the error, fill in the blanks, synonyms, antonyms, spelling/detecting misspelled words, idioms & phrases, one-word substitution, sentence improvement, active/passive voice, direct/indirect narration, shuffling of sentence parts, shuffling of sentences in a paragraph (Para Jumbles), cloze test, reading comprehension passages.

General Awareness

Static GK (History, Culture, Geography, Economic Scene, General Policy, Scientific Research relating to India and neighbouring countries). Current Affairs (national and international events, awards, sports, people in news, recent government schemes, summits).

Computer Knowledge Module (Tier 2 Mandatory)

Computer Basics (organization of a computer, CPU, input/output devices, memory & memory organization, backup devices, PORTs, Windows Explorer, keyboard shortcuts). Software (Windows OS, MS Office — Word, Excel, PowerPoint). Internet and Emails (web browsing, searching, downloading/uploading, managing email accounts, e-banking). Basics of Networking and Cyber Security (networking devices, protocols, threats like hacking/viruses/worms/Trojan and basic preventive measures).

Section II · SSC CHSL

Postings, Job Profiles & Salary Matrix

The SSC CHSL exam is the gateway to clerical cadre postings within Central Ministries and administrative offices — ideal for candidates seeking stable Central Government employment directly after higher secondary education.

Designated PostPay Level AssignmentBasic Pay RangeApprox Gross (X Cities)
Data Entry Operator (DEO) - Grade APay Level 4Rs. 25,500 – 81,100Rs. 48,000+
Data Entry Operator (DEO)Pay Level 5 (Special Scale)Rs. 29,200 – 92,300Rs. 55,000+
Lower Division Clerk (LDC) / Junior Secretariat Assistant (JSA)Pay Level 2Rs. 19,900 – 63,200Rs. 39,000+
SSC CHSL

Eligibility Criteria

  • Age Limits: 18 to 27 years as on the specified cutoff date of the notification year. Relaxations align with national policy (OBC: 3 years, SC/ST: 5 years, PwD: 10 years).
  • Educational Qualifications: Passed 12th Standard or equivalent from a recognized Board or University. For Data Entry Operator (DEO/DEO Grade A) in specified Departments (Ministry of Consumer Affairs, Food & Public Distribution, MoEFCC, etc.), passing 12th Standard in Science Stream with Mathematics as a compulsory subject is required.
SSC CHSL

Examination Pattern

SSC CHSL mimics the restructured CGL format — a qualifying Tier 1 screening followed by a comprehensive multi-modular Tier 2 stage that dictates final candidate rankings.

Tier 1: Preliminary Examination Structure

SectionSubject FieldQuestions / MarksTime Limit Block
Part AEnglish Language (Basic Knowledge)25 Qs / 50 MarksCombined 60 Minutes
Part BGeneral Intelligence & Reasoning25 Qs / 50 MarksCombined 60 Minutes
Part CQuantitative Aptitude (Basic Arithmetic Skills)25 Qs / 50 MarksCombined 60 Minutes
Part DGeneral Awareness25 Qs / 50 MarksCombined 60 Minutes
Summary — Total Testing Frame100 Qs / 200 Marks60 Minutes Total Time
Negative Marking: 0.50 marks penalty for every wrong answer. There are no subject-wise sectional timing blocks inside the 60 minutes for CHSL Tier 1.

Tier 2: Merit Evaluation Phase (Restructured Scheme)

Session BlockSectional Compartment & SubjectsQuestions / Marks WeightTime Block Limit
Session I (2h 15m)Section I: Mathematical Abilities (30Q) + Reasoning & General Intelligence (30Q)60 Qs / 180 Marks (3 Marks per Question)1 Hour total for Section
Session I (Cont.)Section II: English Language & Comp (40Q) + General Awareness (20Q)60 Qs / 180 Marks (3 Marks per Question)1 Hour total for Section
Session I (Cont.)Section III: Computer Knowledge Module15 Qs / 45 Marks15 Minutes (Qualifying Only)
Session II (Skill Tests)Section III Part A: Skill Test for DEOs
Section III Part C: Typing Test for LDC/JSA
Typing Target Speed: 35 WPM Eng; DEO Key Depressions mandatory15 Minutes (DEO Skill Test)
10 Minutes (LDC/JSA Typing)
Negative Marking: A penalty of 1.00 mark applies for each wrong response during Session I objective testing sections.
SSC CHSL

Subject-Wise Syllabus (Detailed Core Breakdown)

Quantitative Aptitude

Arithmetic: Number Systems, Simplification, fractions, decimals, LCM/HCF, percentages, ratio & proportion, square roots, averages, profit & loss, simple and compound interest, discount, partnership business, mixtures & alligation, time-speed-distance, time & work. Algebra: basic school algebra identities, linear and simple quadratic equations. Geometry: lines, angles, triangles, circles, chords, tangents, basic geometric figures. Trigonometry: standard ratios, complementary angles, simple height & distance. Mensuration: areas, volumes, surface areas of regular shapes (cylinders, spheres, cones, prisms). Data Interpretation: histograms, bar graphs, pie charts, tables.

General Intelligence (Reasoning)

Verbal and non-verbal reasoning patterns. Semantic analogy, symbolic operations, symbolic/number analogy, trends, figural analogy, space orientation, semantic classification, Venn diagrams, symbolic/number classification, drawing inferences, figural classification, punched hole/pattern folding, semantic series, figural pattern completion, number series, embedded figures, coding-decoding, critical thinking, problem-solving, matrix, blood relations, directions, order & ranking.

English Language

Grammar: parts of speech, tenses, active/passive voice, direct/indirect narration, subject-verb agreement, error spotting, fill in the blanks, prepositions, articles. Vocabulary: synonyms, antonyms, spelling check, idioms & phrases, one-word substitution, sentence correction. Comprehension: cloze test, reading comprehension passages, sentence improvements, para jumbles.

General Awareness

Static GK covering History, Geography, Polity/Constitution, Economics, General Science (Physics, Chemistry, Biology up to 10th level). Current Affairs emphasizing sports, awards, book authors, government initiatives, portfolios and people in the news.

Computer Proficiency (Tier 2 Qualifying)

Computer fundamentals, peripheral devices, CPU configuration, memory allocation. Software basics (MS Word, MS Excel, MS PowerPoint, Operating System shortcuts). Internet usage, email protocols, web security basics, browsing shortcuts.

Section III

Critical Preparation Blueprint & Insights

Strategic Differences & Preparation Alignment

  1. Mathematical Depth: CGL requires advanced geometry proofs, advanced trigonometry identities and complex coordinate graphs. CHSL emphasizes numerical agility, rapid simplification and basic applications of advanced formula systems.
  2. Vocabulary & Reading Comprehension: CGL Tier 2 sets high-standard reading comprehension (philosophical, abstract or editorial passages) and sophisticated vocabulary. CHSL English leans on grammar syntax accuracy and standard idiom usage.
  3. General Awareness Coverage: CGL dives deeper into structural analytical science, economic policy concepts and constitutional histories. CHSL focuses on facts, direct static data points and straightforward current affairs.

Operational Blueprint for Success — Four Pillars

  • Phase 1 — Conceptual Stabilization (Months 1–3): Focus completely on fundamental concepts. Master topic-by-topic math formulas, structural English rules and compile orderly static GK data. Do not use shortcuts early on.
  • Phase 2 — Sectional Timer Mastery (Months 4–5): Strict sectional timings require quick accuracy. Take timed quizzes to practise switching sections smoothly and managing time.
  • Phase 3 — Comprehensive Mock Drills & Error Auditing (Month 6): Simulate exam conditions during your shift hours. Maintain a rigorous Error Audit Notebook to track and correct repeated mistakes.
  • Phase 4 — Typing Consistency Protocol (Daily): Typing tests (DEST) are compulsory and qualifying. Practise 15 minutes daily from the start to comfortably clear the 35 WPM threshold.

Practice SSC (CGL & CHSL) the smart way

Realistic mock tests, detailed solutions and performance analysis — built for SSC (CGL & CHSL) aspirants.