The book, Railway Samanya Vigyan, by Aditya Ranjan Sir, contains over 5,000 multiple choice questions, including one liners and mcqs, in Hindi. This book is designed to help students prepare for various railway exams, such as RRB ALP Technician, NTPC (CBT-1 and CBT-2), Group D, RPF SI, and Constable JE, for the year 2024-25. With over 5,000 questions, this book is a comprehensive resource for students, written by Aditya Ranjan Sir.