Why do trains have different colours: If you also travel by Indian Railways, then you must have noticed at some time that Indian Railways has three types of coaches. Which are red, blue, and green in colour. Why do railways have coaches of three different colours? So today we will give you complete information through this video as to why this happens. Watch full video in Hindi  https://youtu.be/wRRyT-rvQZM?si=imKVIOj3EAug5khw