Indian Railways is a premier public transportation system in India and one of the largest railway networks in the world. It is the primary mode of passenger transportation in India, connecting all the major cities, and providing the most efficient and safe service to passengers. The network consists of thousands of kilometers of tracks and hundreds of stations. 

The Indian Railways app provides PNR status and tracking for all the services operated by the company. It also provides offline information for all the stations and a comprehensive schedule for the trains. It also has options to save the information for future use. The user can also share the information with friends through SMS, email, etc.

The Indian Railways app is an offline app, which means that the user can use it anytime and anywhere they want.