DSSSB ASO Exam Pattern, Eligibility, Important Dates
152 topics across 5 subjects. Every question carries a written explanation.
Assistant Section Officer (ASO), also called Grade-II of the GNCTD Secretariat Service (GNCTDSS), is the main office post in the Delhi Government's departments. DSSSB recruits it through a two-tier exam.
The current round is post code 804/26 in Advertisement 01/2026 (Combined Examination 2026), for 617 posts: 606 in the Services Department after a May 2026 revision, 3 in the Delhi Pollution Control Committee and 8 in the Delhi Urban Shelter Improvement Board. Around 3.44 lakh candidates are in the race. Tier-I ran from 21 September to about 18 October 2026.
Applicants of the old Grade-II (DASS) post code 90/09 of 2009 were given a special link to apply under 804/26, following Supreme Court directions.
Last checked against the official notification on .
DSSSB ASO Details
Exam Pattern
| Tier | Paper | Marks | Time |
|---|---|---|---|
| Tier-I (qualifying) | 200 MCQs: General Awareness, Reasoning, Arithmetic, Hindi, English, 40 each | 200 | 2 hours |
| Tier-II (merit) | Part I, 200 MCQs: General Awareness, Reasoning, Arithmetic, English, Computer Proficiency, 40 each | 200 | 3 hours, one sitting |
| Part II, descriptive in English: essay or expansion of ideas 50, letter or application 25, precis 25 | 100 |
Tier-I only screens, but its minimum marks still apply. Merit is the 300 marks of Tier-II. Wrong MCQ answers cost 0.25. Note that Hindi is in Tier-I only, and computer questions appear in Tier-II.
Eligibility Criteria
- Bachelor's degree from a recognised university. DUSIB also asks for computer proficiency; basic computer knowledge is desirable for DPCC.
- Age 21 to 30 for the Services Department, and not over 30 for DPCC and DUSIB, on 25 March 2026. DUSIB's own qualified employees have no age limit.
- Relaxation: SC/ST 5 years, OBC 3, PwBD 10; Delhi Government and central employees with three years' service can go up to 5 more years.
Selection Process
Tier-I, then Tier-II, then the e-dossier, where candidates upload documents and pick departments. Posts are allotted on merit and preference. Qualifying marks are 40% (UR/EWS), 35% (OBC Delhi) and 30% (SC/ST/PwBD). Equal marks go to the older candidate.
Salary
Pay Level 7, ₹44,900 to ₹1,42,400, Group B non-gazetted (ministerial), with Delhi Government allowances.
How to Apply
Applications closed on 25 March 2026. They were made on OARS; the fee was ₹100, waived for women, SC, ST, PwBD and ex-servicemen. 2009 applicants of post code 90/09 used a separate link with their old application number.
Participating Institutes
| Department | UR | OBC | SC | ST | EWS | Total |
|---|---|---|---|---|---|---|
| Services Department (revised 26 May 2026) | 223 | 155 | 101 | 44 | 83 | 606 |
| DPCC | 3 | 0 | 0 | 0 | 0 | 3 |
| DUSIB | 5 | 1 | 1 | 0 | 1 | 8 |
The Services Department figure was 576 in the original notice; the corrigendum of 26 May 2026 raised it to 606, with 25 for PwBD.
Important Dates
| Advertisement 01/2026 | 20 February 2026 |
| Applications | 24 February to 25 March 2026 |
| Vacancy corrigendum | 26 May 2026 |
| Tier-I CBT | 21 September to about 18 October 2026, three shifts a day |
| Tier-II | Not announced |
An order of 8 October 2026 refused requests from about 70 candidates to reschedule their Tier-I slot.
Admit Card
Admit cards for the 21 September to 24 October 2026 block were issued through a link on the DSSSB home page and on OARS. The Tier-II admit card will follow the same route.
Result
Tier-I marks and the Tier-II shortlist will be posted on the Latest Result page, after the draft and final answer keys. The previous ASO round in the Board's result schedule, post code 101/23 for SCERT, had its Tier-II marks due in November 2026.
Preparation Tips
- Tier-I is broad and Hindi counts for 40. Clear it comfortably; it decides nothing else.
- Put most effort into Tier-II: practise timed English essays, letters and precis, since 100 of the 300 merit marks are written.
- Computer Proficiency is 40 marks in Tier-II. Cover MS Office, internet and basic hardware.
- Use the Board's own past papers on the Question Bank page.
Official Links
Frequently Asked Questions
How many ASO posts are there in 2026?
617 under post code 804/26 after the May 2026 revision.
Is ASO the same as Grade-II (GNCTDSS)?
Yes. In the Services Department the post is named Grade-II (GNCTDSS) / Assistant Section Officer.
Do Tier-I marks count in the final merit?
No. Tier-I is qualifying; merit is decided by Tier-II out of 300.
Is there a typing test?
The 2026 notice prescribes none for this post. Computer skills are tested in Tier-II Part I.
Can the exam date be changed on request?
No. The Board refused such requests in its order of 8 October 2026.
Computer Awareness (21)
- Computer Fundamentals
- MS Excel
- MS Office
- MS Powerpoint
- MS Word
- Computer Internet
- Computer System Architecture
- Computer Operating System
- Important File Extensions
- Important Abbreviations
- Keyboard Shortcuts
- History of Computers
- Computer Hardware and Software
- Input /Output Devices
- Memory Management
- Computer Languages
- Number System
- Logic Gates
- Computer Network
- Database Management System
- Computer Security
English Language (25)
- Synonyms
- Antonyms
- Double Synonyms
- Homonyms
- One Word Substitution
- Reading Comprehension
- Theme Detection
- Deriving Conclusions from Passages
- Sentence Completion
- Passage Completion
- Fill in the Blanks
- Spotting Errors
- Sentence Improvement
- Passage Correction
- Choose the Correct - Incorrect Sentence
- Reconstruction of Sentence
- Sentences Rearrangement
- Reconstruction of Paragraphs
- Rearrangement of Jumbled Parts
- Word Formation
- Idioms and Phrases
- Active-Passive voice
- Direct-Indirect Speech
- Transformation of Sentences
- Spelling Test
General Awareness / General Knowledge (GK) (23)
- Indian Politics
- Indian History
- Indian Economy
- Important Acts of the Parliament of India
- Honours and Awards
- Indian Geography
- Indian Culture
- World Geography
- Famous Places in India
- Famous Personalities
- Books and Authors
- Sports
- Days and Years
- Inventions
- Highest, Longest, Biggest, Largest, Deepest, Smallest of the World
- General Science
- World Currency
- Country Languages
- Technology
- Physics
- Chemistry
- Biology
- Scientific Names of Plants and Animals
Quantitative Aptitude (49)
- Number System
- H.C.F. & L.C.M.
- Decimal Fractions
- Simplification
- Square Roots & Cube Roots
- Average
- Problems on Numbers
- Problems on Ages
- Surds & Indices
- Percentage
- Operations on Numbers
- Profit & Loss
- Ratio & Proportion
- Partnership
- Chain Rule
- Time & Work
- Pipes & Cistern
- Time & Distance
- Problems on Trains
- Boats & Streams
- Alligation or Mixture
- Simple Interest
- Compound Interest
- Logarithms
- Area
- Volume & Surface Areas
- Mensuration
- Races & Games of Skill
- Calendar
- Clocks
- Stocks & Shares
- Permutations & Combinations
- Probability
- True Discount
- Banker’s Discount
- Heights & Distances
- Odd Man Out & Series
- Algebra
- Divisibility Rules & Remainder Theorem
- Factorials & Power Cycles
- Progressions (A.P., G.P., H.P.)
- Work & Wages
- Set Theory / Venn Diagrams
- Geometry (Lines, Angles, Triangles, Polygons)
- Coordinate Geometry
- Data Interpretation
- Trigonometry
- Statistics (Mean, Median, Mode)
- Arithmetic Operations
Reasoning (34)
- Analogy
- Number Series
- Classification
- Series Completion
- Coding-Decoding
- Input Output
- Inequality
- Blood Relation
- Puzzle Test
- Sequential Output Tracing
- Direction Sense Test
- Linear Seating Arrangement
- Circular Seating Arrangement
- Alphabet Test
- Number, Ranking and Time Sequence Test
- Mathematical Operations
- Logical Sequence of Words
- Arithmetical Reasoning
- Inserting The Missing Character
- Data Sufficiency
- Decision Making
- Assertion and Reason
- Situation Reaction Test
- Verification of Truth of the Statement
- Letter and Symbol Series
- Logic
- Statement - Arguments
- Statement - Assumptions
- Statement - Courses of Action
- Syllogisms
- Statement - Conclusions
- Deriving Conclusions From Passages
- Theme Detection
- Question - Statements
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