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CSIR ASO Syllabus 2026 – Exam Pattern, Selection Process & Subject-Wise Topics

Published on: July 15, 2026 | Updated: July 15, 2026 | Syllabus

Exam Overview

The Council of Scientific and Industrial Research (CSIR) is responsible for conducting the recruitment examination for the Assistant Section Officer (ASO) positions. This exam assesses candidates’ knowledge across various subjects, ensuring they are well-equipped for the roles they are applying for.

Exam Pattern

Subject Questions Marks Duration
Paper I – General Awareness 150 100 1 Hour
Paper II – General Intelligence, Reasoning and Mental Ability 200 100 1 Hour
Paper III – Descriptive (English/Hindi) – 100 1 Hour

Subject-wise Syllabus

  • Paper I – General Awareness
    • History of India & Indian National Movement
    • Constitution of India, Polity, Governance and Social Justice
    • Current Events of National and International Importance
    • English Language and Comprehension
  • Paper II – General Intelligence, Reasoning and Mental Ability
    • General Intelligence & Reasoning
    • Arithmetical and Numerical Ability
    • General Science
    • Economic & Social Development and Environmental Issues
    • Ethics and Human Interface
    • Decision Making and Problem Solving
    • Management Principles & Practices
    • National Geography
  • Paper III – Descriptive
    • Essay writing
    • Precis writing
    • Letter/application writing

Preparation Tips

  • Map your syllabus to a study timetable.
  • Prioritize Paper II for focused preparation.
  • Practice on actual software for the CPT.
  • Stay updated with current affairs regularly.
  • Time your writing practice for the descriptive paper.
  • Be cautious with negative marking in objective papers.

Important Links

Resource Link
CSIR ASO Syllabus PDF Click Here
Official Website csir.res.in
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❓ Frequently Asked Questions

The CSIR ASO exam consists of three papers: Paper I (General Awareness), Paper II (General Intelligence), and Paper III (Descriptive).

Paper I and Paper II are each worth 100 marks, while Paper III is also worth 100 marks.

The syllabus includes General Awareness, General Intelligence, Reasoning, and Descriptive topics like essay writing.

Create a study timetable, focus on Paper II, practice writing, and stay updated with current affairs.

You can download the official CSIR ASO syllabus PDF from the CSIR website.

Yes, be cautious as there is negative marking in the objective type papers.

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