An objective-type multiple-choice examination consisting of 100 questions (25 each from English, Intelligence, Quantitative Aptitude, and General Awareness) to be completed in 60 minutes.
Marks obtained are used to shortlist candidates for Tier-II. It is generally screening in nature for the final merit, as recent SSC patterns base final merit primarily on Tier-II.
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: Foundation & AccuracyMonths 1-2
Clear basic concepts for Tier-I and establish typing habits.
Master English Grammar fundamentals (Tenses, Voice, Narration) and start daily vocabulary reading.
Familiarize with standard Reasoning patterns (Series, Coding-Decoding, Analogy).
Start touch typing practice for 20-30 minutes daily to build muscle memory.
Phase 2: Speed Building & Advanced MathMonths 3-4
Increase solving speed for Tier-I and learn Advanced Mathematics.
Study Advanced Maths (Algebra, Geometry, Trigonometry, Mensuration) using shortcut techniques.
Solve Chapter-wise SSC PYQs for the last 3 years to understand the TCS pattern.
Read Static GK (Lucent) and memorize recent Current Affairs.
Increase typing practice to achieve an initial target of 20-25 wpm.
Phase 3: Mock Tests & Tier-II AlignmentMonths 5-6
Time management under 60 minutes for Tier-I, and preparing for Tier-II depth.
Take full-length Tier-I Mock Tests 2-3 times a week; analyze time spent on Quant vs. Reasoning.
Start studying basic Computer Knowledge (MS Office, Networking) to prepare for the qualifying Tier-II module.
Attempt higher-level reading comprehension to align with Tier-II English standards.
Hit the strict typing target (35 wpm for English / 30 wpm for Hindi) with high accuracy.
Exam Details
Concise and stable information snapshot
Overview
SSC CHSL is a major national-level examination for 12th-pass candidates to secure clerical and data entry positions in various Ministries, Departments, and Offices of the Government of India. The examination consists of two tiers of Computer Based Examination (Tier-I and Tier-II), with Tier-II including a mandatory Skill/Typing Test.
Posts
Lower Divisional Clerk (LDC)
Junior Secretariat Assistant (JSA)
Data Entry Operator (DEO)
Data Entry Operator, Grade 'A'
Eligibility
Educational Qualification12th Standard or equivalent examination from a recognized Board or University
Age Limit18 to 27 years (as on 01.08.2025) years
Age RelaxationSC/ST: +5 years | OBC: +3 years | PwBD (Unreserved): +10 years | Ex-Servicemen: +3 years after deduction of military service
NationalityCitizen of India, Subject of Nepal/Bhutan, or a person of Indian origin who has migrated with the intention of permanently settling in India