Subandhu Dutta is a 30-year-old signalling engineer with over 10 years of experience in railway signalling design. He holds a B.Tech in electronics and communication with specialization in railway signalling design. He has worked on numerous railway signalling projects in India and the UK, producing designs such as control tables, wiring diagrams, cable plans, and axle counter schematics. Currently working as a design engineer at Kalpataru Power Transmission Ltd, his goal is to take on more challenging roles in railway signalling and diversify his experience.