The new edition of GATE 2025: Instrumentation Engineering compiles solved papers from the past 30 years, providing a valuable resource for exam preparation. Fully revised, updated, and organized into topic-wise sections, the book offers clear, step-by-step solutions, making it accessible even to beginners. Each subject starts with an analysis of previous exam papers, helping students gain a deeper understanding of key concepts. While it is an essential tool for GATE aspirants, this book is also highly beneficial for candidates preparing for PSUs and other competitive exams. Its comprehensive coverage and structured approach ensure effective guidance for exam success.