Train Simulator Classic (TSC) remains a premier railroad simulation platform due to its highly active, community-driven modding scene. For fans of Indian Railways (IR), the community has built an incredibly detailed ecosystem of locomotives, rolling stock, routes, and activities.
For scenic mountain railroading, this route recreates parts of the Udhampur-Srinagar-Baramulla Rail Link. It features massive engineering marvels, deep valleys, and complex tunnels.
A great source for scenarios and sometimes routes. They have a variety of content tailored for specific Indian routes.
Do not look on the Steam Store for these; they are not sold there. You must go to community hubs.
Groups like Train Simulator India or IR Train Simulator Freeware serve as active hubs where independent developers share direct Google Drive or Mega links to their latest creations.