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Tier-I: Computer Based Examination

An objective-type multiple-choice examination consisting of 100 questions (25 each from General Intelligence, General Awareness, Quantitative Aptitude, and English Comprehension) to be completed in 60 minutes.

Qualifying/Screening in nature. Marks obtained in Tier-I are NOT counted for the final merit list.
Tier-I Examination200 marks · 60 minutes
- 0.50 marks deducted for each wrong answer penalty

Preparation Timeline

Suggested phase-by-phase study plan

Phase 1: Concept Mastery & Syllabus Completion Months 1-3

Build a strong foundation in all four subjects (Math, English, Reasoning, GA) focusing directly on Tier-II depth.

  • Complete Arithmetic and Advanced Maths concepts. Learn shortcut formulas and theorems.
  • Master English grammar rules entirely and read newspaper editorials daily for comprehension skills.
  • Study Static GK (History, Polity, Geography) from Lucent's General Knowledge.
  • Learn basic touch typing on a keyboard to prepare early for the mandatory DEST.
Phase 2: Speed Building & Sectional Mocks Months 4-5

Increase problem-solving speed and familiarize yourself with the TCS question pattern.

  • Solve SSC CGL Previous Year Chapter-wise questions (last 4-5 years) for all subjects.
  • Take sectional mock tests to improve speed in Maths and Reasoning.
  • Memorize English vocabulary (OWS, Idioms, Synonyms) heavily from previous year compilations.
  • Review monthly current affairs compilations.
Phase 3: Full Mocks & Tier-II Simulation Months 6-7 (Leading to Tier-II)

Time management, mitigating the 1-mark negative penalty in Tier-II, and clearing the computer cut-off.

  • Take full-length Tier-I and Tier-II mock tests in a simulated exam environment.
  • Strictly analyze mock test errors. Focus heavily on English reading comprehension as it holds maximum weightage (45 questions).
  • Study Computer Basics deeply. Do not ignore this section as failing it disqualifies the entire exam.
  • Practice typing 2000 keystrokes in 15 minutes daily to clear the DEST confidently.

Exam Details

Concise and stable information snapshot

Overview

SSC CGL is one of the most prestigious competitive exams in India for recruiting graduates into various Group B and Group C posts in ministries, departments, and organizations of the Government of India. The selection process was recently revamped to include a two-tier Computer Based Examination, where Tier-II is comprehensive and decides the final merit.

Posts

  • Assistant Audit Officer & Assistant Accounts Officer (Group 'B' Gazetted)
  • Assistant Section Officer (CSS, IB, Ministry of Railway, MEA, AFHQ)
  • Inspector of Income Tax (CBDT)
  • Inspector (CGST & Central Excise, Preventive Officer, Examiner) (CBIC)
  • Sub-Inspector (CBI, NIA)
  • Inspector Posts (Department of Post)
  • Divisional Accountant (CAG)
  • Auditor (C&AG, CGDA)
  • Tax Assistant (CBDT, CBIC)
  • Upper Division Clerk (UDC)

Eligibility

Educational Qualification Bachelor's Degree from a recognized University or Institute (Specific degrees required for JSO and AAO)
Age Limit 18 to 27, 30, or 32 years depending on the specific post (as on 01.08.2025) years
Age Relaxation SC/ST: +5 years | OBC: +3 years | PwBD (Unreserved): +10 years | Ex-Servicemen: +3 years after deduction of military service
Nationality Citizen of India, Subject of Nepal/Bhutan, or a person of Indian origin who has migrated with the intention of permanently settling in India

Tags

ssccglgraduate-levelgroup-bgroup-ccentral-govt

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Recommended Resources

Curated study materials for preparation

Quantitative Aptitude

Play with Advanced Maths — Abhinay Sharma

Book

Excellent for advanced mathematics (Geometry, Algebra, Trigonometry).

SSC Mathematics Chapterwise Solved Papers (Pinnacle/Kiran)

Book

Essential for practicing recent TCS pattern questions.

English Comprehension

English for General Competitions (Vol 1) — Neetu Singh

Book

The gold standard for SSC grammar rules.

Blackbook of English Vocabulary

Book

Best compilation of previous year SSC vocabulary (OWS, Idioms, Syno/Anto).

General Intelligence & Reasoning

SSC Reasoning Chapterwise Solved Papers (Pinnacle)

Book

Best for practicing the logic and patterns currently used by TCS.

General Awareness & Computer

Lucent’s General Knowledge

Book

Comprehensive guide for History, Polity, Geography, and Science.

Computer Awareness — Arihant Experts

Book

Crucial for passing the mandatory Tier-II Computer Knowledge module.

Last updated: 10 Mar 2026