The five major classes in Indian society (from top to bottom) would be the Brahmin (or priests), Kshatryia (warriors and kings), Vaisya (merchants and landowners), Sudra (or peasants and servants. Finally, the class that has been kicked out of Indian society are called untouchables. They often have the worst of the worst jobs and are a disgrace.
City planners adopted railroad technology in the Industrial Age to help out commuters. Since a lot of factories were not located close to homes, people took the train to get to work as their way of transportation.
