ISRO Assistant, UDC & JPA Syllabus 2026: Same 200 Marks, But Not the Same Paper

ISRO released this recruitment notification (Advt No. ISRO:ICRB:01(A-JPA):2026, dated 27 July 2026) for 242 posts across Assistant, Upper Division Clerk (UDC), Junior Personal Assistant (JPA), and Stenographer roles through the ISRO Centralised Recruitment Board. If you’re preparing right now, here’s the detail worth internalizing before you build a study plan: Assistant/UDC and JPA/Stenographer don’t sit the same paper. Both carry 200 total marks, but the question distribution across sections is genuinely different between the two, and treating them as interchangeable prep tracks will leave you under-prepared for whichever one you actually applied for.

The Basics

Assistant/UDC Exam Pattern — Four Equal Sections

Duration: 150 minutes. Marking: +1 for each correct answer, -0.25 for each wrong answer.

Notice every section carries identical weight — 50 questions, 50 marks apiece. There’s no single dominant section here the way there is for JPA/Stenographer (covered below). If you’re preparing for Assistant or UDC, the exam pattern itself is telling you to prepare broadly and evenly across all four areas rather than over-investing in one at the expense of the others.

JPA/Stenographer Exam Pattern — English Dominates

The JPA and Stenographer paper also totals 200 marks, but the distribution across sections is structurally different from Assistant/UDC. English Language & Comprehension carries the highest weightage by a wide margin — around 100 of the 200 questions, effectively half the entire paper. The remaining marks are split across Quantitative Aptitude, General Intelligence & Reasoning, and General Knowledge.

This is the single most important structural fact for anyone preparing for JPA or Stenographer specifically: if you split your prep time evenly across four subjects the way an Assistant/UDC candidate reasonably would, you’re under-investing in the section that decides roughly half your total score. A JPA candidate who’s strong in Reasoning and General Knowledge but only average in English is working against the exam’s own weighting, not just against other candidates.

Why This Weighting Difference Isn’t Just About the Written Score

There’s a second, related detail that makes English even more consequential for JPA and Stenographer candidates specifically (Posts 2, 4, and 6 in the notification’s numbering): the tie-breaking rule for these posts favors the candidate with higher marks in English specifically, not overall aggregate marks. If two candidates land on an identical total score, the one who scored higher in the English section alone is placed above the other — only if English marks are also tied does the tiebreaker fall back to age, with the older candidate ranked higher. For Assistant and UDC posts, by contrast, no source reviewed here indicates an English-specific tiebreaker over the general aggregate — the sectional emphasis genuinely diverges between these two exam tracks, not just at the syllabus level but potentially at the margin-decides-your-rank level too.

English Language & Comprehension — Common Topics Across Both Exams

• Reading Comprehension
• Grammar (Tenses, Articles, Prepositions, Subject-Verb Agreement)
• Vocabulary (Synonyms, Antonyms, One-Word Substitution)
• Spotting Errors/Sentence Correction
• Fill in the Blanks
• Cloze Test
• Idioms and Phrases

Since this section carries either equal weight (Assistant/UDC) or dominant weight (JPA/Stenographer), it’s not a section either track can afford to treat as secondary.

Quantitative Aptitude

• Number Systems
• Simplification
• Percentage
• Profit and Loss
• Ratio and Proportion
• Time and Work
• Time, Speed, and Distance
• Simple and Compound Interest
• Average
• Mensuration
• Data Interpretation

General Intelligence & Reasoning Ability

• Analogy
• Classification
• Series (Number and Alphabet)
• Coding-Decoding
• Blood Relations
• Direction Sense
• Syllogism
• Statement and Conclusion
• Non-verbal Reasoning (Figures, Patterns)

General Knowledge

• Current Affairs (national and international)
• Indian History and Culture
• Geography
• Indian Polity and Constitution
• Science and Technology, with a natural lean toward space technology and ISRO-related developments given the recruiting organisation
• Static GK (books, awards, important days)

The Skill Test — Qualifying Only, But Not Optional

For posts where it applies, a Skill Test assesses computer proficiency specifically in MS Word, MS Excel, and MS PowerPoint, run over 75 minutes. This stage is qualifying in nature — it doesn’t add marks toward your final merit score, but you need to clear it to remain in contention. A candidate who tops the written test but struggles through the practical computer skill assessment doesn’t get to fall back on their written score; the skill test functions as a separate gate, not a scoring supplement.

Since this section evaluates hands-on proficiency rather than theoretical knowledge, practicing actual document formatting, spreadsheet formulas, and presentation creation under time pressure is a more useful preparation strategy here than reading about these tools — this is a “can you actually do it” test, not a “do you know what these tools are for” test.

Selection Process — And a Misconception Worth Correcting

The full sequence is: Computer-Based Written Test → Skill Test (where applicable) → Document Verification. That’s it — there is no interview stage anywhere in this process, for any of the four posts. Candidates coming from a background where administrative government posts typically include a personal interview round sometimes assume one exists here too and prepare accordingly; for this ISRO recruitment cycle, that preparation time would be better redirected toward the written test and skill test, since neither the notification nor any of the detailed breakdowns reviewed here mention an interview component at any stage.

Frequently Asked Questions

Q1. I’m preparing for JPA — should I split my study time equally across all four subjects, the way I would for a typical government exam?
No, not based on this exam’s actual structure. English Language & Comprehension carries roughly half the total questions for JPA/Stenographer specifically — significantly more than the other three sections combined in some breakdowns. Weighting your prep time to match that emphasis makes more sense than an even four-way split.

Q2. Does the tie-breaking rule work the same way for Assistant/UDC as it does for JPA/Stenographer?
Based on available details, no. For JPA/Stenographer (Posts 2, 4, and 6), ties are broken first by higher English section marks specifically, then by age. No English-specific tiebreaker is indicated for Assistant/UDC in the sources reviewed — confirm this detail against the official notification if it’s relevant to your specific situation.

Q3. Is there an interview after the written test and skill test?
No. The selection process for this recruitment cycle runs through the Computer-Based Written Test and, where applicable, the Skill Test, followed by Document Verification — no interview stage is included at any point.

Q4. Does the Skill Test score add to my final merit ranking?
No. The Skill Test, assessing MS Word, Excel, and PowerPoint proficiency, is qualifying only. You need to clear it to remain eligible, but it doesn’t contribute marks toward your final selection rank — that comes entirely from the written test.

Q5. Is the exam pattern identical for Assistant and UDC posts?
Yes, based on available details — Assistant and UDC share the same 200-question, four-equal-section pattern (50 questions each in English, Quantitative Aptitude, Reasoning, and General Knowledge), distinct from the English-heavy JPA/Stenographer pattern.

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Disclaimer: Vacancy figures (242), exam pattern, section-wise question distribution, marking scheme, and selection process above are drawn from ISRO’s official recruitment notification (Advt No. ISRO:ICRB:01(A-JPA):2026) dated 27 July 2026 and its accompanying syllabus annexures. Candidates should verify subject-wise details against the official notification PDF for their specific applied post. For the latest updates, check the official website: https://www.isro.gov.in.