Check the complete ISRO Assistant UDC Syllabus 2026 and Exam Pattern for Assistant, UDC, JPA, and Stenographer posts. Download syllabus PDF, exam pattern, marking scheme, subject-wise topics, and preparation tips.
ISRO Assistant UDC Syllabus 2026
The Indian Space Research Organisation (ISRO) has released the latest ISRO Assistant UDC Syllabus 2026 along with the recruitment notification for Assistant, Upper Division Clerk (UDC), Junior Personal Assistant (JPA), and Stenographer posts. Candidates preparing for the written examination should thoroughly understand the latest syllabus and exam pattern to maximize their preparation.
The written examination will be conducted in Computer-Based Test (CBT) mode and will consist of 200 objective-type questions carrying 200 marks. Candidates will get 150 minutes to complete the examination, and 0.25 mark will be deducted for every incorrect answer.
This article provides the complete subject-wise syllabus, exam pattern, marking scheme, and preparation strategy for the ISRO Assistant UDC Recruitment 2026.
ISRO Assistant UDC Syllabus 2026 Highlights
| Particular | Details |
|---|---|
| Organization | Indian Space Research Organisation (ISRO) |
| Advertisement No. | ISRO: ICRB:01(A-JPA):2026 |
| Examination Mode | Computer-Based Test (CBT) |
| Question Type | Objective (Multiple Choice Questions) |
| Total Questions | 200 |
| Total Marks | 200 |
| Exam Duration | 150 Minutes |
| Marking Scheme | 1 Mark for Each Correct Answer |
| Negative Marking | 0.25 Mark |
| Official Website | https://www.isro.gov.in |
ISRO Assistant UDC Exam Pattern 2026
The exam pattern differs according to the post.
Assistant / UDC Exam Pattern
| Subject | Questions | Marks |
|---|---|---|
| General English | 50 | 50 |
| Quantitative Aptitude | 50 | 50 |
| General Intelligence & Reasoning | 50 | 50 |
| General Knowledge | 50 | 50 |
| Total | 200 | 200 |
- Mode of Exam: Computer-Based Test
- Duration: 150 Minutes
- Negative Marking: 0.25 Mark
ISRO Assistant UDC Syllabus 2026
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JPA / Stenographer Exam Pattern
| Subject | Questions | Marks |
|---|---|---|
| English Language & Comprehension | 100 | 100 |
| General Intelligence & Reasoning | 50 | 50 |
| Quantitative Aptitude & General Knowledge | 50 | 50 |
| Total | 200 | 200 |
- Mode of Exam: Computer-Based Test
- Duration: 150 Minutes
- Negative Marking: 0.25 Mark
ISRO Assistant/UDC Syllabus 2026
The syllabus for Assistant and Upper Division Clerk posts includes four major sections. ISRO Assistant UDC Syllabus 2026
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General English
Candidates should prepare the following topics:
- Grammar
- Vocabulary
- Synonyms and Antonyms
- Idioms and Phrases
- Sentence Formation
- Sentence Improvement
- Reading Comprehension
- Fill in the Blanks
- Error Detection
- One Word Substitution
- Active and Passive Voice
- Direct and Indirect Speech
- Cloze Test
- Correct Usage of Words
- Writing Accuracy
Quantitative Aptitude
Important topics include:
- Number System
- Simplification
- LCM & HCF
- Percentages
- Profit and Loss
- Discount
- Ratio and Proportion
- Average
- Simple Interest
- Compound Interest
- Time and Work
- Time, Speed and Distance
- Boats and Streams
- Pipes and Cisterns
- Partnership
- Surds and Indices
- Algebra
- Coordinate Geometry
- Polynomials
- Sequence and Series
- Geometry
- Mensuration
- Trigonometry
- Statistics
- Data Interpretation
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General Intelligence & Reasoning Ability
Candidates should focus on:
- Number Series
- Missing Number
- Repeated Series
- Analogy
- Coding-Decoding
- Venn Diagram
- Logical Arrangement
- Sitting Arrangement
- Ranking
- Alphabet Series
- Dice
- Cube and Cuboid
- Calendar
- Clock
- Direction Sense Test
- Counting Figures
- Mirror Image
- Water Image
- Coded Equations
- Logical Sequence
General Knowledge
Important topics include:
- Current Affairs
- Indian History
- Geography
- Indian Constitution
- Indian Polity
- Indian Economy
- Science and Technology
- Environment
- Culture
- Government Schemes
- Awards and Honours
- Books and Authors
- Important Days
- Static General Knowledge
ISRO JPA/Stenographer Syllabus 2026
The syllabus for Junior Personal Assistant and Stenographer gives greater emphasis to English Language & Comprehension. ISRO Assistant UDC Syllabus 2026
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English Language & Comprehension
Candidates should prepare:
- Spot the Error
- Fill in the Blanks
- Synonyms
- Antonyms
- Vocabulary
- Grammar
- Cloze Test
- Reading Comprehension
- Sentence Improvement
- One Word Substitution
- Idioms and Phrases
- Active & Passive Voice
- Direct & Indirect Speech
- Detecting Misspelled Words
General Intelligence & Reasoning
Topics include:
- Analogy
- Coding-Decoding
- Number Series
- Missing Number
- Logical Arrangement
- Sitting Arrangement
- Ranking
- Venn Diagram
- Dice
- Cube and Cuboid
- Calendar
- Clock
- Mirror Image
- Water Image
- Alphabet Problems
- Direction Sense
- Counting Figures
- Coded Equations
- Sequence-Based Questions
Quantitative Aptitude
Candidates should study:
- Number System
- Simplification
- Percentages
- Profit and Loss
- Discount
- Ratio and Proportion
- Average
- Simple Interest
- Compound Interest
- Time and Work
- Time, Speed and Distance
- Boats and Streams
- Pipes and Cisterns
- Partnership
- Algebra
- Coordinate Geometry
- Geometry
- Mensuration
- Trigonometry
- Statistics
- Data Interpretation
General Knowledge
The important topics are:
- National Current Affairs
- International Current Affairs
- Indian History
- Geography
- Indian Constitution
- Indian Economy
- General Science
- Culture
- Environment
- Static GK
- Important Government Schemes
ISRO Assistant UDC Preparation Tips
Candidates can improve their performance by following these preparation strategies: ISRO Assistant UDC Syllabus 2026
- Study the latest syllabus before starting preparation.
- Understand the exam pattern and marking scheme.
- Prepare a daily study timetable.
- Strengthen grammar and vocabulary.
- Practice Quantitative Aptitude regularly.
- Solve reasoning puzzles and previous year questions.
- Read newspapers for Current Affairs.
- Attempt mock tests weekly.
- Revise important formulas and concepts.
- Improve speed and accuracy to reduce negative marking.
ISRO Assistant UDC Syllabus 2026
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Best Books for ISRO Assistant UDC Exam
| Subject | Recommended Books |
|---|---|
| English | Objective General English by S.P. Bakshi |
| Quantitative Aptitude | Quantitative Aptitude by R.S. Aggarwal |
| Reasoning | A Modern Approach to Verbal & Non-Verbal Reasoning by R.S. Aggarwal |
| General Knowledge | Lucent’s General Knowledge |
| Current Affairs | Monthly Current Affairs Magazine & Newspapers |
ISRO Assistant UDC Syllabus PDF
The official ISRO Assistant UDC Syllabus 2026 PDF has been released along with the recruitment notification. Candidates should download the official syllabus and use it while planning their preparation to ensure that every important topic is covered. ISRO Assistant UDC Syllabus 2026
ISRO Assistant UDC Syllabus 2026: Summary
The ISRO Assistant UDC Syllabus 2026 includes four major sections for Assistant and UDC posts: General English, Quantitative Aptitude, General Intelligence & Reasoning, and General Knowledge. For JPA and Stenographer posts, the examination places greater emphasis on English Language & Comprehension, along with Reasoning, Quantitative Aptitude, and General Knowledge. The written examination will be conducted in CBT mode, consisting of 200 objective questions carrying 200 marks with a duration of 150 minutes and 0.25 mark negative marking for each incorrect answer. ISRO Assistant UDC Syllabus 2026
Frequently Asked Questions (FAQs)
What is the mode of the ISRO Assistant UDC Exam 2026?
The examination will be conducted in Computer-Based Test (CBT) mode.
How many questions will be asked in the ISRO Assistant UDC Exam?
There will be 200 objective-type questions.
What is the duration of the examination?
Candidates will get 150 minutes to complete the examination.
Is there negative marking in the ISRO Assistant UDC Exam?
Yes. 0.25 mark will be deducted for every incorrect answer.
Which subjects are included in the Assistant/UDC syllabus?
The syllabus includes General English, Quantitative Aptitude, General Intelligence & Reasoning, and General Knowledge.
What is the total mark of the written examination?
The written examination carries 200 marks.
Which section has the highest weightage for JPA and Stenographer posts?
English Language & Comprehension has the highest weightage with 100 questions.