This book reviews the development of rolling stock in 20th Century India across all the major gauges - broad, metre, 2' 6", and 2'. During the colonial era, underframes and sometimes entire vehicles were usually imported from Britain, but Indian railway companies had latitude in terms of body designs. Following Independence, India became self-sufficient in building rolling stock, and the designs were standardized across the railways. Each vehicle is described and illustrated with photographs, most of which have not been published previously. HO scale diagrams are provided for modellers.