Del­hi Sub­or­di­nate Ser­vices Selec­tion Board (DSSSB) has released Adver­tise­ment No. 03/2026 for 1,979 var­i­ous posts. The recruit­ment cov­ers Junior Sci­en­tif­ic Assis­tant, IT Assis­tant, Data Pro­cess­ing Assis­tant, Data Entry Oper­a­tor, TGT Com­put­er Sci­ence, Domes­tic Sci­ence Teacher, Spe­cial Edu­ca­tion Teacher, Spe­cial Edu­ca­tor, Fit­ter, Lift Oper­a­tor, Elec­tri­cal Over­seer/­Sub-Inspec­tor and oth­er posts.

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The exam­i­na­tion scheme is post-wise. DSSSB has divid­ed the posts under Adver­tise­ment No. 03/2026 into One Tier Gen­er­al, One Tier Tech­ni­cal and One Tier Technical/Teaching exam­i­na­tions. There­fore, can­di­dates should pre­pare accord­ing to the exam­i­na­tion scheme applic­a­ble to their post code.

DSSSB Advt. 03/2026 Exam Pattern

The offi­cial DSSSB adver­tise­ment spec­i­fies that each ques­tion car­ries 1 mark and the exam­i­na­tion is objective/MCQ based.

DSSSB One Tier General Syllabus

The One Tier Gen­er­al exam­i­na­tion applies to:

• I.T. Assis­tant Grade‑A – Post Code 34/26
• Data Pro­cess­ing Assis­tant Grade‑A – Post Code 39/26
• Data Entry Oper­a­tor Grade‑B – Post Code 40/26

Exam Pattern

The offi­cial noti­fi­ca­tion pre­scribes 200 MCQs for 200 marks, with 40 marks assigned to each of the five sub­jects.

1. General Awareness

Pre­pare the fol­low­ing areas:

• Cur­rent Affairs
• Nation­al and Inter­na­tion­al Events
• Indi­an History
• Indi­an Geography
• Indi­an Polity
• Con­sti­tu­tion of India
• Indi­an Economy
• Gen­er­al Science
• Sci­en­tif­ic and Tech­no­log­i­cal Developments
• Impor­tant Gov­ern­ment Schemes
• Impor­tant Orga­ni­za­tions and Institutions
• Sports
• Awards and Honours
• Books and Authors
• Impor­tant Days
• Cul­ture and Heritage
• Gen­er­al knowl­edge relat­ed to Delhi

Tip: Give spe­cial atten­tion to cur­rent events and impor­tant nation­al developments.

2. General Intelligence & Reasoning Ability

Impor­tant areas for prepa­ra­tion include:

• Anal­o­gy
• Clas­si­fi­ca­tion
• Sim­i­lar­i­ties and Differences
• Cod­ing-Decod­ing
• Num­ber and Alpha­bet Series
• Blood Rela­tions
• Direc­tion Sense
• Rank­ing and Ordering
• Syl­lo­gism
• State­ment and Conclusion
• Venn Dia­gram
• Log­i­cal Reasoning
• Prob­lem Solving
• Deci­sion Making
• Data Suf­fi­cien­cy
• Non-Ver­bal Reasoning
• Fig­ure Classification
• Pat­tern and Observation

3. Arithmetical & Numerical Ability

Impor­tant Maths top­ics include:

• Num­ber System
• Sim­pli­fi­ca­tion
• LCM and HCF
• Per­cent­age
• Ratio and Proportion
• Aver­age
• Prof­it and Loss
• Dis­count
• Sim­ple Interest
• Com­pound Interest
• Time and Work
• Pipes and Cisterns
• Time, Speed and Distance
• Part­ner­ship
• Mix­ture and Alligation
• Men­su­ra­tion
• Data Inter­pre­ta­tion
• Basic Alge­bra
• Basic Geom­e­try
• Basic Trigonom­e­try

For this sec­tion, can­di­dates should prac­tice cal­cu­la­tions reg­u­lar­ly because ques­tions are objec­tive and time is limited.

4. Hindi Language & Comprehension

Pre­pare:

• Hin­di Grammar
• Vocab­u­lary
• पर्यायवाची शब्द
• विलोम शब्द
• अनेकार्थी शब्द
• संधि
• समास
• उपसर्ग और प्रत्यय
• मुहावरे और लोकोक्तियाँ
• वाक्य शुद्धि
• शब्द शुद्धि
• वर्तनी
• वाक्य विन्यास
• रिक्त स्थान
• गद्यांश / Comprehension

5. English Language & Comprehension

Impor­tant top­ics include:

• Eng­lish Grammar
• Vocab­u­lary
• Syn­onyms
• Antonyms
• One Word Substitution
• Idioms and Phrases
• Spelling
• Arti­cles
• Prepo­si­tions
• Tens­es
• Sub­ject-Verb Agreement
• Active and Pas­sive Voice
• Direct and Indi­rect Speech
• Sen­tence Improvement
• Error Detec­tion
• Fill in the Blanks
• Sen­tence Rearrangement
• Read­ing Comprehension

DSSSB One Tier Technical Syllabus

The One Tier Tech­ni­cal exam­i­na­tion applies to most of the Junior Sci­en­tif­ic Assis­tant and tech­ni­cal posts under Adver­tise­ment No. 03/2026, includ­ing post codes 21/26 to 33/26, 35/26 to 38/26 and 45/26.

Exam Pattern

Section‑A con­tains 20 marks each from Gen­er­al Aware­ness, Gen­er­al Intel­li­gence & Rea­son­ing, Arith­meti­cal & Numer­i­cal Abil­i­ty, Hin­di Lan­guage & Com­pre­hen­sion and Eng­lish Lan­guage & Comprehension.

Section‑B con­tains 100 ques­tions for 100 marks from the sub­ject con­cerned accord­ing to the qual­i­fi­ca­tion pre­scribed for the par­tic­u­lar post.

Section‑A Syllabus for Technical Posts

General Awareness – 20 Marks

• Cur­rent Affairs
• His­to­ry
• Geog­ra­phy
• Indi­an Polity
• Con­sti­tu­tion
• Econ­o­my
• Gen­er­al Science
• Sci­ence & Technology
• Sports
• Awards
• Cul­ture
• Impor­tant Gov­ern­ment Schemes
• Nation­al and Inter­na­tion­al Events

Reasoning – 20 Marks

• Anal­o­gy
• Clas­si­fi­ca­tion
• Series
• Cod­ing-Decod­ing
• Blood Rela­tions
• Direc­tion Test
• Syl­lo­gism
• Venn Dia­gram
• Log­i­cal Reasoning
• State­ment and Conclusion
• Prob­lem Solving
• Non-Ver­bal Reasoning

Numerical Ability – 20 Marks

• Num­ber System
• Per­cent­age
• Ratio
• Aver­age
• Prof­it & Loss
• Sim­ple and Com­pound Interest
• Time & Work
• Time & Distance
• Alge­bra
• Geom­e­try
• Men­su­ra­tion
• Data Inter­pre­ta­tion

Hindi – 20 Marks

• Gram­mar
• Vocab­u­lary
• Syn­onyms and Antonyms
• Sen­tence Correction
• Idioms
• Com­pre­hen­sion
• Spelling
• Word Usage

English – 20 Marks

• Gram­mar
• Vocab­u­lary
• Syn­onyms and Antonyms
• Sen­tence Correction
• Error Detec­tion
• Fill in the Blanks
• Idioms and Phrases
• Read­ing Comprehension

Section‑B: Post-Wise Technical Syllabus

The offi­cial noti­fi­ca­tion does not pro­vide one com­mon tech­ni­cal syl­labus for all tech­ni­cal posts. Instead, Section‑B is based on the sub­ject con­cerned accord­ing to the qual­i­fi­ca­tion pre­scribed for the par­tic­u­lar post.

There­fore, can­di­dates should focus on the core sub­ject relat­ed to their post and edu­ca­tion­al qualification.

Junior Scientific Assistant – Biology

For Post Code 21/26, pre­pare the core areas relat­ed to the pre­scribed Biology/Life Sci­ence qual­i­fi­ca­tions, such as:

• Zool­o­gy
• Botany
• Biol­o­gy
• Micro­bi­ol­o­gy
• Bio­chem­istry
• Genet­ics
• Biotech­nol­o­gy
• Mol­e­c­u­lar Biology
• Life Sci­ence
• Foren­sic Science

The exact domain should be aligned with the qual­i­fi­ca­tion pre­scribed for the post.

Junior Scientific Assistant – Ballistics

Post Code 22/26

Focus on the pre­scribed areas of:

• Physics
• Math­e­mat­ics / Applied Mathematics
• Foren­sic Science
• Bal­lis­tics-relat­ed concepts

Junior Scientific Assistant – Chemistry

Post Code 23/26

Focus on:

• Chem­istry
• Tox­i­col­o­gy
• Bio­chem­istry
• Foren­sic Science
• Ana­lyt­i­cal and lab­o­ra­to­ry con­cepts relat­ed to the pre­scribed qualification

Junior Scientific Assistant – Lie Detection

Post Code 24/26

Focus pri­mar­i­ly on:

• Psy­chol­o­gy
• Crim­i­nol­o­gy
• Rel­e­vant con­cepts relat­ed to foren­sic/lie-detec­tion applications

Junior Scientific Assistant – Documents

Post Code 25/26

Focus on:

• Physics
• Chem­istry
• Foren­sic Science
• Doc­u­ment exam­i­na­tion-relat­ed concepts

Junior Scientific Assistant – HRD/QC

Post Code 26/26

Prepa­ra­tion should cor­re­spond to the accept­ed qual­i­fi­ca­tion areas, which include sub­jects such as:

• Physics
• Math­e­mat­ics
• Com­put­er Science
• Chem­istry
• Botany
• Zool­o­gy
• Foren­sic Science
• Psy­chol­o­gy
• Biotech­nol­o­gy
• Genet­ics
• Com­put­er Appli­ca­tions / IT
• Elec­tron­ics / ECE
• HR/­Man­age­ment-relat­ed sub­jects where applicable

Junior Scientific Assistant – Photo

Post Code 27/26

Focus on the rel­e­vant areas of:

• Physics
• Com­put­er Science
• Data Ana­lyt­ics
• Arti­fi­cial Intelligence
• Infor­ma­tion Technology
• Foren­sic Science

Junior Scientific Assistant – Cyber Forensic

Post Code 28/26

Focus on:

• Com­put­er Science
• Com­put­er Applications
• Infor­ma­tion Technology
• Cyber Secu­ri­ty
• Elec­tron­ics
• Com­put­er Networks
• Dig­i­tal Forensics
• Cyber Crime and relat­ed tech­ni­cal concepts

Junior Scientific Assistant – Crime Scene / District Mobile Forensic Unit

Post Code 29/26

Focus on the rel­e­vant sub­jects men­tioned in the qual­i­fi­ca­tion, including:

• Zool­o­gy
• Botany
• Anthro­pol­o­gy
• Micro­bi­ol­o­gy
• Chem­istry
• Physics
• Tox­i­col­o­gy
• Bio­chem­istry
• Foren­sic Science

Junior Scientific Assistant – Finger Print

Post Code 30/26

Focus on:

• Physics
• Chem­istry
• Foren­sic Science
• Fin­ger­print-relat­ed foren­sic concepts

Junior Scientific Assistant – Physics

Post Code 31/26

Focus on:

• Physics
• Foren­sic Sci­ence with Physics-relat­ed concepts

Technical Assistant – Hindi

Post Code 32/26

Focus on:

• Hin­di Language
• Eng­lish Language
• Trans­la­tion
• Hin­di-to-Eng­lish Translation
• Eng­lish-to-Hin­di Translation
• Gram­mar
• Vocab­u­lary
• Com­pre­hen­sion

Assistant Archivist Grade‑I

Post Code 33/26

Focus on:

• His­to­ry
• Mod­ern Indi­an History
• Archives and Record Management
• Preser­va­tion and man­age­ment of records
• Rel­e­vant archival practices

Fitter Grade-II

Post Code 35/26

Focus on the rel­e­vant Plumber Trade knowl­edge pre­scribed for the post, includ­ing prac­ti­cal trade-relat­ed concepts.

Lift Operator

Post Code 36/26

Focus on:

• Elec­tri­cian Trade
• Wire­man Trade
• Elec­tri­cal Fundamentals
• Elec­tri­cal Safety
• Lift-relat­ed electrical/mechanical basics

Assistant Operator-cum-Mechanic (A/C)

Post Code 37/26

Focus on:

• Refrig­er­a­tion
• Air Con­di­tion­ing
• RAC Mechan­ic concepts
• Basic Elec­tri­cal Knowledge
• Cool­ing systems
• Main­te­nance and troubleshooting

Sub Station Apprentice

Post Code 38/26

Focus on:

• Elec­tri­cian Trade
• Elec­tri­cal Fundamentals
• Elec­tri­cal Machines
• Wiring
• Safe­ty
• Dis­tri­b­u­tion Systems
• Sub­sta­tion-relat­ed basics

Electrical Overseer / Sub-Inspector

Post Code 45/26

Focus on:

• Elec­tri­cal Engineering
• Elec­tri­cal Machines
• Pow­er Systems
• Gen­er­a­tion and Transmission
• Dis­tri­b­u­tion
• Elec­tri­cal Measurements
• Elec­tri­cal Safety
• Basic Elec­tri­cal Laws and Circuits

DSSSB Technical / Teaching Syllabus

The One Tier Technical/Teaching exam­i­na­tion applies to:

• TGT Com­put­er Sci­ence – Post Code 41/26
• Domes­tic Sci­ence Teacher – Post Code 42/26
• TGT Spe­cial Edu­ca­tion Teacher – Post Code 43/26
• Spe­cial Edu­ca­tor Pri­ma­ry – Post Code 44/26

The offi­cial scheme pro­vides 100 questions/100 marks in Section‑A and 100 questions/100 marks in Section‑B. Section‑B con­sists of ques­tions from the con­cerned sub­ject and, for teach­ing posts, includes Teach­ing Methodology/B.Ed.-related ques­tions.

Section‑A

• Gen­er­al Aware­ness – 20 Marks
• Gen­er­al Intel­li­gence & Rea­son­ing – 20 Marks
• Arith­meti­cal & Numer­i­cal Abil­i­ty – 20 Marks
• Hin­di Lan­guage & Com­pre­hen­sion – 20 Marks
• Eng­lish Lan­guage & Com­pre­hen­sion – 20 Marks

Section‑B

TGT Computer Science – 41/26

Pre­pare:

• Com­put­er Fundamentals
• Pro­gram­ming Concepts
• Data Struc­tures
• Algo­rithms
• Oper­at­ing Systems
• Data­base Man­age­ment Systems
• Com­put­er Networks
• Inter­net and Web Technologies
• Soft­ware Engineering
• Com­put­er Architecture
• Cyber Secu­ri­ty
• Infor­ma­tion Technology
• Rel­e­vant Com­put­er Sci­ence grad­u­a­tion-lev­el topics
• Teach­ing Method­ol­o­gy / B.Ed. concepts

Domestic Science Teacher – 42/26

Focus on:

• Home Sci­ence / Domes­tic Science
• Food and Nutrition
• Human Devel­op­ment
• Fam­i­ly Resource Management
• Cloth­ing and Textiles
• Health and Hygiene
• Home Man­age­ment
• Rel­e­vant teach­ing methodology
• B.Ed.-related top­ics

TGT Special Education Teacher – 43/26

Pre­pare:

• Spe­cial Education
• Inclu­sive Education
• Child Devel­op­ment
• Learn­ing Disabilities
• Intel­lec­tu­al Disability
• Autism Spec­trum Disorder
• Visu­al Impairment
• Hear­ing Impairment
• Spe­cial Edu­ca­tion Teach­ing Methods
• Assess­ment and Evaluation
• Reha­bil­i­ta­tion concepts
• Edu­ca­tion­al Psychology
• Teach­ing Methodology
• B.Ed. Spe­cial Edu­ca­tion topics

Special Educator Primary – 44/26

Focus on:

• Pri­ma­ry-lev­el education
• Child Devel­op­ment
• Inclu­sive Education
• Spe­cial Education
• Dis­abil­i­ty-spe­cif­ic education
• Learn­ing and teach­ing methods
• Edu­ca­tion­al Psychology
• Class­room Management
• Assess­ment and Evaluation
• CTET Pri­ma­ry-lev­el concepts
• RCI-relat­ed spe­cial edu­ca­tion concepts
• Teach­ing Methodology

The qual­i­fi­ca­tion require­ments for the teach­ing posts, includ­ing CTET and spe­cial-edu­ca­tion require­ments where applic­a­ble, are spec­i­fied sep­a­rate­ly in the offi­cial advertisement.

DSSSB 03/2026 Negative Marking

There is neg­a­tive mark­ing in the examination.

• Cor­rect Answer: +1 mark
• Wrong Answer: -0.25 mark
• Unan­swered Ques­tion: 0 mark

The offi­cial noti­fi­ca­tion states that 0.25 marks will be deduct­ed for each wrong answer to a 1‑mark MCQ.

DSSSB Exam Language

The ques­tions in the exam­i­na­tion will gen­er­al­ly be avail­able in Hin­di and Eng­lish. How­ev­er, the lan­guage papers will be con­duct­ed in the respec­tive language.

DSSSB Minimum Qualifying Marks

The noti­fi­ca­tion spec­i­fies the fol­low­ing min­i­mum qual­i­fy­ing marks, wher­ev­er applicable:

DSSSB also reserves the right to pre­scribe a high­er cut-off depend­ing on the post, num­ber of can­di­dates and vacancies.

DSSSB 03/2026 Selection Process

Selec­tion will be made accord­ing to the exam­i­na­tion scheme pre­scribed for the par­tic­u­lar post.

Depend­ing on the post, can­di­dates may also be required to appear for a:

• Skill Test
• Phys­i­cal Endurance Test
• Dri­ving Test
• Trade Test
• Apti­tude Test
• Oth­er applic­a­ble test

The offi­cial noti­fi­ca­tion specif­i­cal­ly states that such tests will be con­duct­ed wher­ev­er required for the job.

How to Prepare for DSSSB Advt. 03/2026

Step 1: Identify Your Post Code

First check whether your post falls under:

• One Tier General
• One Tier Technical
• One Tier Technical/Teaching

Step 2: Complete Section‑A

For Tech­ni­cal and Teach­ing posts, pre­pare the five com­mon subjects:

Gen­er­al Aware­ness + Rea­son­ing + Maths + Hin­di + English

Step 3: Give More Time to Section‑B

Section‑B car­ries 100 marks, equal to the com­plete Section‑A. There­fore, can­di­dates should not ignore the domain subject.

Step 4: Practice MCQs

Because the exam­i­na­tion is objec­tive-based and has neg­a­tive mark­ing, prac­tice mock tests and pre­vi­ous DSSSB-style ques­tions regularly.

Step 5: Revise Your Core Qualification Subject

For tech­ni­cal posts, pre­pare the sub­ject areas con­nect­ed with the qual­i­fi­ca­tion pre­scribed for your par­tic­u­lar post code.

Important Note About the DSSSB Syllabus

DSSSB Adver­tise­ment No. 03/2026 offi­cial­ly defines the exam struc­ture and Section‑B as the sub­ject con­cerned accord­ing to the pre­scribed qual­i­fi­ca­tion. It does not pro­vide one iden­ti­cal detailed chap­ter-wise domain syl­labus for all 25 post codes. There­fore, can­di­dates should not study the same tech­ni­cal sub­ject for every post.

The Board also reserves the right to change or amend the exam­i­na­tion scheme before the examination.

DSSSB Advt. 03/2026 – Important Links

DSSSB Offi­cial Adver­tise­ment No. 03/2026:
Down­load Offi­cial Notification

DSSSB Vacan­cy / Recruit­ment Page:
View DSSSB Vacan­cy Notice

DSSSB Offi­cial Web­site:
Vis­it DSSSB Offi­cial Website