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Complete Beginners Guide to Becoming a PSIR Optional Topper in UPSC

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Detailed Syllabus + Paper Wise Sources and Shortlisted Chapters + Thematic Compilation of PYQs (2013-2024)

Also Get PSIR Year-Wise PYQs!

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Thematic Compilation of PYQs (2013-2023)

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Shortlisted Chapters

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