Railway Technician Book (Hindi) is published by Kiran Prakashan. It is available in Hindi medium. Best Guide Book cum Reference Book for Railway / RRB Exam Preparation. Consist of Previous Years Solved Question Papers. RAILWAY TECHNICIAN & ASSISTANT LOCO PILOT (DIESEL / ELECTRICAL) EXAMINATION SALVED PAPERS (HINDI). Includes Stage 1 and Stage 2 exams solved papers.