DSSSB ASO Syllabus 2026 provides a complete roadmap for candidates preparing for the Delhi Subordinate Services Selection Board Assistant Section Officer (Grade-II / GNCTD) exam. It covers objective and descriptive tests across two tiers, focusing on general awareness, reasoning, numerical ability, languages, and computer proficiency to assess administrative skills for Delhi government roles.
DSSSB ASO Syllabus 2026 is now available for the Assistant Section Officer recruitment under Advt. No. 01/2026. The Delhi Subordinate Services Selection Board (DSSSB) conducts this two-tier exam to fill Grade-II (GNCTD) posts in various Delhi government departments.
Tier 1 serves as a qualifying screening test, while Tier 2 determines the final merit with both objective and descriptive components. Candidates must master General Awareness, Reasoning, Numerical Ability, Hindi & English Comprehension, and Computer Proficiency. Understanding the complete DSSSB ASO syllabus and exam pattern helps aspirants create an effective study plan and score well in this competitive state-level exam.
DSSSB ASO 2026 Exam Overview
| Particular | Details |
|---|---|
| Conducting Body | Delhi Subordinate Services Selection Board (DSSSB) |
| Post Name | Assistant Section Officer (ASO) / Grade-II (GNCTD) |
| Notification Release | February 2026 (Advt. No. 01/2026) |
| Vacancies | 587 (approx.) |
| Selection Process | Tier 1 (Qualifying) + Tier 2 (Merit) + Document Verification + Medical Exam |
| Exam Mode | Computer-Based Test (CBT) |
| Negative Marking | 0.25 marks per wrong answer |
| Official Website | dsssb.delhi.gov.in |
DSSSB ASO Exam Pattern 2026
The exam follows a Two-Tier structure. Tier 1 is qualifying in nature. Final selection is based on Tier 2 performance (Part 1 MCQ + Part 2 Descriptive).
Tier 1 Exam Pattern (Qualifying)
| Subject | Questions | Marks | Duration |
|---|---|---|---|
| General Awareness | 40 | 40 | 2 Hours |
| General Intelligence & Reasoning Ability | 40 | 40 | |
| Arithmetical & Numerical Ability | 40 | 40 | |
| Hindi Language & Comprehension | 40 | 40 | |
| English Language & Comprehension | 40 | 40 | |
| Total | 200 | 200 |
Tier 2 Exam Pattern (Merit-Deciding)
Part 1 (Objective MCQ – 200 Marks)
| Subject | Questions | Marks |
|---|---|---|
| General Awareness | 40 | 40 |
| General Intelligence & Reasoning | 40 | 40 |
| Arithmetical & Numerical Ability | 40 | 40 |
| English Language & Comprehension | 40 | 40 |
| Computer Proficiency | 40 | 40 |
| Total (Part 1) | 200 | 200 |
Part 2 (Descriptive – 100 Marks, in English)
| Section | Marks |
|---|---|
| Essay / Expansion of Ideas | 50 Marks |
| Letter / Application Writing | 25 Marks |
| Precis Writing / Summarising | 25 Marks |
Total Duration for Tier 2: 3 Hours (one session).
Negative Marking: 0.25 per wrong MCQ answer in both tiers.
DSSSB ASO Syllabus 2026 – Tier 1 & Tier 2 (Detailed Tables)
1. General Awareness Syllabus (Tier 1 & Tier 2)
- Current Events (National & International, last 6 months)
- Indian History, Geography, Polity & Constitution
- Economics, Sports, Art & Culture
- Scientific Research, Discoveries & Everyday Science
- National & International Organizations
- Famous Places, Books & Authors in India
- Environmental Issues & Delhi-specific GK (governance, schemes)
2. General Intelligence & Reasoning Ability Syllabus
- Analogies, Similarities & Differences
- Problem Solving, Analysis, Judgment & Decision Making
- Visual Memory, Discrimination, Observation
- Relationship Concepts, Arithmetical Reasoning
- Verbal & Figure Classification, Number Series
- Blood Relations, Syllogism, Coding-Decoding, Direction Sense
3. Arithmetical & Numerical Ability Syllabus
- Number System, Simplification, Decimals & Fractions
- LCM & HCF, Ratio & Proportion, Percentage, Average
- Profit & Loss, Discount, Simple & Compound Interest
- Time & Work, Time & Distance, Mensuration
- Data Interpretation, Tables & Graphs
4. Hindi Language & Comprehension Syllabus (Mainly Tier 1)
- Grammar, Vocabulary, Sentence Structure
- Synonyms, Antonyms, One Word Substitution
- Idioms & Phrases, Error Detection, Reading Comprehension
- Correct Usage & Spelling
5. English Language & Comprehension Syllabus (Tier 1 & Tier 2)
- Reading Comprehension, Vocabulary, Grammar
- Sentence Structure & Improvement
- Synonyms, Antonyms, Idioms & Phrases
- Active/Passive Voice, Direct/Indirect Narration
- Error Spotting, Fill in the Blanks
6. Computer Proficiency Syllabus (Tier 2 Only)
- Basics of Computers, Hardware & Software
- History & Generations of Computers
- MS Office (Word, Excel, PowerPoint) – Formatting, Formulas, Shortcuts
- Operating Systems (Windows), Internet & Networking Basics
- Email, Cyber Security, Virus & Antivirus
- Input/Output Devices, Memory & Storage
Preparation Tips for DSSSB ASO 2026
- Start with Tier 1 to clear the qualifying cut-off.
- Focus more on Tier 2 Computer section and Descriptive English (Essay, Letter, Precis).
- Read newspapers daily for Current Affairs and practice previous year papers.
- Solve mock tests regularly to manage time and negative marking.
- Emphasize Delhi-specific GK for General Awareness.
