Disha Go To Guide for Indian Railway Recruitment Board RRB Technician Grade I Signal CEN 02/ 2025 2nd edition Paperback – 22 August 2025

Very useful to competitive exams

This book didn't cover complete syllabus, electrical measurement, ranges and extensions, i bought this book only to cover science and engineering,,this book is not effective,, very less matter and mcqs are not that great

Nice and detailed.😇😇

This book is giving me outstanding approach to qualify the rrb technician grade 1 exam. It's very helpful.

This is not a guide book that has Detailed syllabus. It is only a revision book that has formulas and questions. Syllabus is okay but not good as you will need more book for detailed study.

The book is too good. The concepts and the questions based on that concepts are very clear and they providing recent current affairs also. I recommend to every aspirant to buy this as it useful to everyone.

In maths section few topics were not covered

Worst book....bekarrrr hai yee book kahin bhi kuch bhi topic diyaa hua hai