In this guide
For lakhs of young people across India, the Combined Higher Secondary Level (CHSL) examination is the first real chance at a permanent central government job. You need only to have passed Class 12, and the posts it fills — clerks and data entry operators in ministries, departments and offices across the country — come with the security, pay scale and promotion ladder of government service. Because it attracts so many candidates, understanding the pattern well is the first step to standing out.
The stages at a glance
| Stage | What it is | Counts for rank? |
|---|---|---|
| Tier 1 | Objective test on four subjects | Qualifying — decides who goes to Tier 2 |
| Tier 2, Session I | Objective test; merit is built here | Yes (Sections I and II) |
| Tier 2, Session II | Typing test (LDC/JSA) or data entry speed test (DEO) | Qualifying |
| Document verification | Eligibility checks | — |
Tier 1
| Section | Questions | Marks |
|---|---|---|
| English Language | 25 | 50 |
| General Intelligence (Reasoning) | 25 | 50 |
| Quantitative Aptitude | 25 | 50 |
| General Awareness | 25 | 50 |
| Total | 100 | 200 |
- Time: 60 minutes, with 15 minutes per section (sectional timing).
- Negative marking: 0.50 for each wrong answer.
- Level: mostly Class 10 standard in maths; Class 12-level English.
Tier 2, Session I
| Section | Module | Questions | Marks |
|---|---|---|---|
| I | Mathematical Abilities | 30 | 90 |
| Reasoning and General Intelligence | 30 | 90 | |
| II | English Language and Comprehension | 40 | 120 |
| General Awareness | 20 | 60 | |
| III | Computer Knowledge | 15 | 45 (qualifying) |
- 3 marks for each correct answer; 1 mark deducted for each wrong answer.
- Merit is built on Sections I and II — a total of 360 marks.
- Each section is separately timed.
Tier 2, Session II: the skill test
| Post | Test | Standard (as reported) |
|---|---|---|
| LDC / JSA | Typing test on computer | 35 words per minute in English or 30 words per minute in Hindi |
| DEO | Data Entry Speed Test | 8,000 key depressions per hour (15,000 for the few DEO posts that need Science with Maths) |
These tests are qualifying: they don't add marks, but failing them rules you out of those posts.
Where the marks are
In Tier 2, English (120 marks) is the largest module, followed by mathematics and reasoning (90 each). GA carries 60. A candidate who is strong in English and maths has a clear advantage.
What the pattern means for preparation
- Build English and maths from day one — they decide most of your Tier 2 score.
- Make reasoning a daily habit — it is fast to improve and highly scoring.
- Revise GA steadily, especially static GK and science.
- Start typing practice early — it takes weeks to reach the required speed with accuracy.
- Prepare computer basics for the qualifying section.
- Practise accuracy: with −1 in Tier 2, careless guesses are costly.
Practice
- How many questions does Tier 1 have, and how long do you get?
- Which Tier 2 module carries the most marks?
- What is the negative marking in Tier 2?
- What typing speed is required for LDC/JSA in English?
- Which parts of Tier 2 are qualifying only?
Answers: 1. 100 questions in 60 minutes. 2. English (40 questions, 120 marks). 3. 1 mark per wrong answer. 4. 35 words per minute. 5. Computer Knowledge (Section III) and the skill test (Session II).
A note on dates and numbers. Exam patterns, vacancies and schedules change from year to year. Always confirm the current details in the latest notification on the Staff Selection Commission website .
Get the next SSC CHSL guide by email
New guides every week. No spam, unsubscribe any time.