ISRO Assistant, UDC & JPA Syllabus 2026; Complete Exam Pattern, Subject-wise Topics, Skill Test & Preparation Guide

The Indian Space Research Organisation (ISRO) has released the ISRO Assistant, Upper Division Clerk (UDC), Junior Personal Assistant (JPA) and Stenographer Recruitment 2026 notification to fill 242 vacancies across various ISRO centres in India. Candidates aiming for these prestigious administrative posts must understand the latest ISRO Assistant, UDC & JPA Syllabus 2026 and exam pattern before starting their preparation. The selection process includes a Computer-Based Written Test (CBT) for all posts, followed by a Skill Test for the applicable positions and Document Verification, with no interview involved.

This article provides the complete ISRO Assistant, UDC & JPA Syllabus 2026, including the latest exam pattern, section-wise topics, skill test details, marking scheme, preparation strategy, recommended books, and important FAQs. Whether you are applying for Assistant, UDC, JPA, or Stenographer, this guide will help you prepare in a structured manner and focus on the topics that carry the highest weightage in the examination.

ISRO Assistant, UDC & JPA Syllabus 2026
Indian Space Research Organisation (ICRB)  |  Advt. No. ISRO:ICRB:01(A-JPA):2026  |  242 Posts

ISRO Assistant, UDC & JPA 2026 — Quick Facts

Particulars Details
Organisation Indian Space Research Organisation — Centralised Recruitment Board (ICRB)
Posts Covered Assistant, Upper Division Clerk (UDC), Junior Personal Assistant (JPA), Stenographer
Total Vacancies 242
Application Window 27 July 2026 – 16 August 2026
Centres Covered Ahmedabad, Bengaluru, Hassan, Hyderabad, Mahendragiri, New Delhi, Sriharikota, Thiruvananthapuram
Pay Level Level-4, 7th CPC Pay Matrix (₹25,500 – ₹81,100 basic)
Selection Stages Written Test → Skill/Stenography Test (JPA & Stenographer only) → Document Verification — no interview

Exam Stages & Pattern Overview

Stage Applicable To Nature
Stage 1 — Written Test (CBT) All posts: Assistant, UDC, JPA, Stenographer Qualifying + Merit-ranking
Stage 2 — Skill/Stenography Test JPA & Stenographer only (UDC/Assistant may have a Data Entry check per post code) Qualifying only
Stage 3 — Document Verification All shortlisted candidates Eligibility confirmation

Written Test — Section-wise Marks & Time Table

Section Questions Marks
General English 50 50
Quantitative Aptitude 50 50
General Intelligence & Reasoning 50 50
General Knowledge 50 50
Total 200 200
Mode: Online (CBT), all objective MCQs  |  Duration: 120 minutes  |  Negative Marking: 0.25 marks deducted per wrong answer. This 4-section/200-mark structure follows ISRO’s established Assistant/UDC/JPA pattern used in recent cycles; the 2026 notification’s own Annexure is the final authority once uploaded.

Syllabus: General English

# Topic
1 Spotting Errors
2 Fill in the Blanks
3 Synonyms & Antonyms
4 Detecting Misspelled Words
5 Idioms & Phrases
6 One-Word Substitution
7 Sentence Improvement
8 Active/Passive Voice
9 Direct/Indirect Narration
10 Cloze Passage
11 Reading Comprehension

Syllabus: Quantitative Aptitude

# Topic
1 Number System & Simplification
2 Percentage, Profit & Loss
3 Ratio, Proportion & Averages
4 Simple & Compound Interest
5 Time, Speed & Distance
6 Time & Work
7 Mensuration (Area & Volume)
8 Data Interpretation (Tables, Graphs, Pie-charts)
9 Algebra & Basic Trigonometry

Syllabus: General Intelligence & Reasoning

# Topic
1 Missing Number Series
2 Repeated/Number Series
3 Analogy
4 Venn Diagrams
5 Logical Arrangement of Words
6 Coding & Decoding
7 Sitting Arrangement
8 Ranking/Direction Sense
9 Dice, Cube & Cuboid
10 Syllogism & Statement-Conclusion

Syllabus: General Knowledge & Current Affairs

# Topic
1 Indian History & Culture
2 Indian Geography
3 Indian Polity & Constitution
4 General Science (Basic Physics/Chemistry/Biology)
5 Space & ISRO-related Current Affairs (missions, launches, recent achievements)
6 National & International Current Affairs (last 6-12 months)
7 Awards, Sports & Books-Authors
Since this is a Department of Space recruitment, ISRO’s GK section leans noticeably more toward space-science current affairs than a typical SSC/banking GK paper — candidates who only revise generic GK often under-prepare this specific slice.

Skill Test Syllabus — Post-wise Breakdown

Post Skill Test Component Duration
Assistant / UDC Computer-based Data Entry Speed Test (typing/data-entry accuracy check on the prescribed passage) 60 minutes
JPA / Stenographer Shorthand dictation (300 words) followed by transcription on computer, using Pittman’s shorthand system only (longhand not permitted) Dictation: 5 minutes @ 60 wpm  +  Transcription: 30 minutes
PwBD candidates are entitled to compensatory time on the transcription component, as applicable per ISRO’s standard skill-test norms.

Skill Test Qualifying Criteria & Shortlisting Ratio

  • Shortlisting for the Skill Test is done in the ratio of 1:5 (maximum) against category-wise vacancies, with an aggregate minimum of 10 candidates per category.
  • For reserved-category posts, additional/distinct candidates are shortlisted separately in the same 1:5 ratio, without double-counting reserved candidates who already qualify under the UR list.
  • The Skill/Stenography Test is purely qualifying in nature — it does not add marks to the final merit list, but failing it eliminates the candidate regardless of written-test score.
  • The minimum shorthand speed benchmark for JPA/Stenographer eligibility itself is 60 words per minute in English Shorthand.

Selection Process Flow

Step What Happens
1 Online application + fee payment
2 Written Test (CBT) — General English, Quant, Reasoning, GK
3 Shortlisting for Skill/Stenography Test (1:5 ratio) — JPA & Stenographer, plus applicable UDC/Assistant post codes
4 Document Verification of shortlisted/qualified candidates
5 Final Merit List & Appointment — no separate interview round

Why the Assistant/UDC Syllabus Differs From JPA/Stenographer Syllabus

  • The written test syllabus is identical for all four posts — ISRO tests the same general aptitude base regardless of role, because every one of these posts is administrative/clerical at entry level.
  • The skill test is where the roles genuinely diverge: Assistant/UDC work centres on data handling and correspondence, so their skill check is a data-entry/typing speed test; JPA and Stenographer work centres on taking dictation for officers, so their skill check is a shorthand-plus-transcription test instead.
  • This means a candidate strong in typing but weak in shorthand should lean toward Assistant/UDC preference ordering, while a candidate with an existing stenography background gets a real edge applying for JPA/Stenographer — the written-test prep is shared, but the skill-test prep is not interchangeable.

Topic-wise Priority & Expected Weightage

Section High-Priority Topics Priority Level
General English Spotting Errors, Cloze Passage, One-Word Substitution High
Quantitative Aptitude Percentage, Data Interpretation, Time & Work High
Reasoning Coding-Decoding, Series, Syllogism Medium-High
General Knowledge Space/ISRO current affairs, Polity, recent national events Medium

Section-wise Time Management Strategy

Section Suggested Time (out of 120 min)
General English 25 minutes
Quantitative Aptitude 35 minutes
General Intelligence & Reasoning 30 minutes
General Knowledge 15 minutes
Review/Buffer 15 minutes
GK gets the least time here deliberately — it’s a recall section where extra minutes rarely convert unanswered questions into correct ones, unlike Quant/Reasoning where extra time genuinely helps.

Recommended Books & Resources

Section Suggested Resource
General English Wren & Martin (grammar base) + SP Bakshi’s Objective English
Quantitative Aptitude R.S. Aggarwal’s Quantitative Aptitude
Reasoning R.S. Aggarwal’s Verbal & Non-Verbal Reasoning
General Knowledge Lucent’s General Knowledge (latest edition) + monthly current-affairs digest, with a specific focus on ISRO/space-mission updates
Skill Test (Steno/JPA) Pitman Shorthand practice manuals + timed dictation practice at 60 wpm
Skill Test (Assistant/UDC) Regular typing-speed practice tools to build consistent accuracy under a 60-minute test window

Common Preparation Mistakes to Avoid

  • Preparing only generic GK and skipping ISRO/space-specific current affairs, which recur more often in this paper than in typical clerical exams.
  • Practising shorthand only in longhand shortcuts — ISRO’s transcript evaluation requires Pittman’s system, and non-Pittman scripts are simply not evaluated.
  • Ignoring negative marking discipline — attempting every question in Reasoning/Quant without a guess-vs-skip strategy costs more than it gains at 0.25 per wrong answer.
  • Choosing a post preference (Assistant/UDC vs JPA/Stenographer) based only on vacancy count instead of actual skill-test readiness — clearing the written test doesn’t help if the skill test then eliminates you.
  • Leaving typing/shorthand speed-building to the last two weeks — speed skills need weeks of consistent daily practice, not last-minute cramming.

Important Dates

Event Date
Notification Released (Advt. ISRO:ICRB:01(A-JPA):2026) 27 July 2026
Online Application Start 27 July 2026
Last Date to Apply Online 16 August 2026
Written Test Date To be notified

Frequently Asked Questions (FAQs)

Q: Is the written test syllabus the same for Assistant, UDC and JPA?
Yes — all four posts (Assistant, UDC, JPA, Stenographer) share the same 4-section, 200-mark written test. Only the Skill Test after it differs by post.
Q: What shorthand system does ISRO require for JPA/Stenographer?
Pittman’s shorthand only — transcripts written in longhand or any other system are not evaluated.
Q: Is there negative marking in the ISRO written test?
Yes, 0.25 marks are deducted for every wrong answer.
Q: Is there an interview in this selection process?
No. Selection is Written Test → Skill/Stenography Test (where applicable) → Document Verification only.
Q: What is the last date to apply for ISRO Recruitment 2026?
16 August 2026, through the official ISRO website.
Q: What pay level will selected candidates get?
Level-4 of the 7th CPC Pay Matrix, starting basic pay ₹25,500/- per month.

Important Links

ISRO Official Website click here 
Careers / Recruitment Section isro.gov.in → Careers
official  notification  click here 
latest job by firstjob24.com click  here 
follow on whatsapp click  here 
follow on telegram click  here 

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