ISRO VSSC 2025 Syllabus PDF Download | Complete Exam Pattern & Preparation Guide

Are you aiming for a Technical Assistant or Scientist role at ISRO Vikram Sarabhai Space Centre (VSSC) in 2025? The first step to success is downloading and mastering the official syllabus PDF. In this comprehensive guide, we’ll walk you through the exact syllabus, exam pattern, and effective preparation strategies to help you breeze through the written test.

Where to Download the ISRO VSSC 2025 Syllabus PDF

The detailed syllabus is included in official VSSC notification Advt. No. VSSC‑335 (May 31, 2025) from ISRO. It states:

• Written test: 80 multiple-choice questions (1 mark each, –0.33 for wrong answers), duration 90 minutes

• Skill/Trade test: qualifying only; UR/EWS ≥32/80, reserved ≥24/80 

• Official PDF link available on [vssc.gov.in] under recruitment circulars

ISRO VSSC 2025 Exam Pattern (At-a-Glance)

Syllabus varies based on the post:

Technical Assistant (Mechanical / Electronics / Computer Science)

Mechanical:

• Fluid Mechanics, Thermodynamics, Strength of Materials

• Heat Engines, Theory of Machines, Structural Engineering 

Electronics & Communication:

• Analog & Digital Circuits, Measurements, Control Systems

• Signals & Systems, Electronics Instrumentation, Transducers 

Computer Science:

• DBMS, Computer Architecture, OS, Networks, Compiler Design

• Theory of Computation, Web Tech & Software Engineering 

Scientist/Engineer-SC & Technician‑B

• Technical syllabus aligned with respective engineering specializations

• Similar exam structure: 80 MCQs, 90 minutes, –0.33 negative marking 

How to Download the PDF

1. Go to ISRO VSSC’s official recruitment portal (vssc.gov.in).

2. Search for VSSC‑335 advertisement dated May 31, 2025.

3. Locate and download the "Detailed Syllabus" PDF linked under post details 

4. Save the file and refer consistently for accurate preparation.

Smart Preparation Tips for VSSC Exam

1. Topic-Wise Revision: Tackle core subjects like Fluid Mechanics, Signals, OS, DBMS based on your discipline.

2. Target Past Papers & Mock Tests: Get accustomed to the time-bound pattern and question style.

3. Focus on Strong Fundamentals: Avoid guesswork due to negative marking; clarity is key.

4. Skill Test Readiness: Brush up on hands-on or trade skills (mechanical workshop, circuit labs, programming tasks).

5. Time Management: Practice section-wise to complete 80 questions within 90 minutes consistently.

FAQ Section

Q1. Where can I find the official syllabus for ISRO VSSC 2025?
The PDF is bundled within the VSSC‑335 advertisement on ISRO’s official recruitment website 

Q2. What is the marking scheme and cut-off?
Written test: +1 / –0.33 per MCQ. Qualifying marks: UR/EWS ≥32, Reserved ≥24 

Q3. Does each engineering discipline have a different syllabus?
Yes. Mechanical, Electrical/Electronics, and CS applicants have tailored subject topics listed above.

Q4. Is the skill/trade test scored?
No. It’s only qualifying—UR/EWS need ≥50/100; reserved categories need ≥40/100 

Q5. When is the written test likely scheduled?
The date is not out yet—stay tuned to vssc.gov.in post advertisement June 16, 2025 .

Call to Action

Unlock your dream of working at VSSC by starting today—download the syllabus PDF, map out a study schedule, and dive into targeted preparation. Use past papers and mocks to benchmark your progress.

Ready to launch your ISRO journey? Download the syllabus now, chart your roadmap, and prepare with confidence. Wishing you stellar success on your VSSC mission!