OPSC OAS Essential Downloads
NCERT • PYQ • Standard Books
Your complete preparation resource hub.
Welcome to Study OAS Free Downloads
Download NCERTs, OPSC PYQ papers, and standard recommended books for your complete preparation.
NCERTs & PYQs form the backbone of OPSC preparation. Solve them regularly to boost your accuracy and exam confidence.
📚 NCERT Books (Class 6 - 12)
These NCERTs help you build deep conceptual clarity from basics to advanced.
📘 Class-6
📘 Class-7
📘 Class-8
📘 Class-9
📘 Class-10
📘 Class-11
CHEMISTRY PART-I
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CHEMISTRY PART-II
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ECONOMICS
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GEOGRAPHY PART-I
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GEOGRAPHY PART-II
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HISTORY
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HOME SCIENCE PART I
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HOME SCIENCE PART II
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PHYSICS PART-2
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PHYSICS PAT-I
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POLITICAL SCIENCE PART-I
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POLITICAL SCIENCE PART-II
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📘 Class-12
BIOLOGY
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CHEMISTRY PART I
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CHEMISTRY PART II
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ECONOMICS PART I
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ECONOMICS PART II
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GEOGRAPHY PART I
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GEOGRAPHY PART II
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HISTORY PART I
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HISTORY PART II
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HISTORY PART III
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HOME SCIENCE PART I
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HOME SCIENCE PART II
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PHYSICS PART I
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PHYSICS PART II
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POLITICAL SCIENCE PART 2
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POLITICAL SCIENCE PART I
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📝 OPSC Previous Year Papers
Solve these PYQs to understand pattern, difficulty level & repeated topics.
OCS PRELIMS PAPER II (2023)
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OCS PRELIMS PAPER II (2020)
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OCS PRELIMS PAPER I (2021)
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OCS PRELIMS PAPER I (2018)
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OCS PRELIMS PAPER I (2016)
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OCS PRELIMS PAPER I (2011)
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OCS PRELIMS PAPER II (2022)
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OCS PRELIMS PAPER I (2023)
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OCS PRELIMS PAPER I (2019)
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OCS PRELIMS PAPER I (2017)
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OCS PRELIMS PAPER I (2015)
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OCS PRELIMS PAPER 1 (2006)
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📖 Standard Books
The best reference books selected for Mains depth.