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Q.How is the S-400 Air Defence System Technically Superior to Any Other System Presently Available in the World?

Examiner Demand & Directive Blueprint: Analytical / Multi-DimensionalIntro: ~20–25 Words • Body: ~100 Words (3–4 dimensions) • Conclusion: ~20–25 Words

How to approach: Identify every sub-question in the prompt, allocate dedicated sub-headings to each part, substantiate points with examples/data, and conclude with a forward-looking Way Forward.

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Reviewed by Avinash Sir (Lead UPSC Faculty) & Acme AI Research Team • Updated Sep 2026

Question Specifications, Marking Rubric & Syllabus Mapping

Examination & YearUPSC Civil Services Mains Examination 2021 (Question 2)
Paper & Syllabus TopicGeneral Studies Paper III — Economy, Environment, S&T & Security → Science, Technology & Innovation
Marks, Word Limit & Ideal Time10 Marks • 150 Words • Ideal Writing Time: 7–8 Minutes
Directive Word & Core DemandAnalytical / Multi-Dimensional: Address all explicit sub-parts of the question with balanced arguments, factual illustrations, and a solution-oriented conclusion.
Recommended Structure SplitIntro: ~20–25 Words • Body: ~100 Words (3–4 dimensions) • Conclusion: ~20–25 Words
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Frequently Asked Questions — UPSC Mains 2021 GS3 (Science & Technology)

How should I structure the answer for this UPSC Mains 2021 GS Paper III question on Science & Technology?

This 2021 GS Paper III question carries 10 marks with a 150-word limit and uses the "Analytical / Multi-Dimensional" directive. Identify every sub-question in the prompt, allocate dedicated sub-headings to each part, substantiate points with examples/data, and conclude with a forward-looking Way Forward. Follow the ideal word split (Intro: ~20–25 Words • Body: ~100 Words (3–4 dimensions) • Conclusion: ~20–25 Words) and aim to finish within 7–8 Minutes.

Which UPSC Mains syllabus topic does this 2021 question belong to?

This question is part of General Studies Paper III — Economy, Environment, S&T & Security under the syllabus module "Science, Technology & Innovation". You can explore all repeated questions from Science & Technology in Acme AI's 3D PYQ Realm or filter all Science & Technology PYQs on the Mains PYQ Directory.

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Yes. Click "Generate Answer & Mind Map" on this page to open Acme AI's Answer Generator (/gen-ans) with this exact 2021 GS3 question pre-filled. You can generate custom topper-grade answers with embedded Mermaid flowcharts and mind maps in either English or Hindi.

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