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Are you preparing for the IB ACIO (Assistant Central Intelligence Officer) Tier 1 Exam 2025? This expertly designed English medium book is your complete practice and revision tool, tailored for Grade II / Executive level aspirants. With 20 full-length sets—including 17 Previous Year Papers (PYQs) and 3 sample papers—this book is built to mirror the latest exam pattern and real test environment. It features detailed solutions for every question, including all shifts from 2024 and 2021, helping you understand concepts thoroughly and boost problem-solving speed. Covering all exam sections—General Awareness, Quantitative Aptitude, Reasoning, and English—this book supports self-paced preparation and is ideal for both beginners and repeat candidates. Trusted by thousands of aspirants, it is your roadmap to confidence and success in the Intelligence Bureau recruitment exam.