The second largest Railway system in the world, Indian Railways generates lots of jobs every year to the Indian Nationals. The broadly divided Zones of Indian Railways and its Divisions have technical and non-technical departments to which the recruitments are done through Competitive Exams. These Exams are conducted by Union public service commission (UPSC) and Railway Recruitment Board (RRB). The entry is done through three different channels:

* Group A
* Group B
* Group C

Group A officers are recruited by UPSC through:

* Civil Service Examination for Indian Railway Traffic Services (IRTS) and the Indian Railways Accounts Services (IRAS)
* Combined Engineering Service for Indian Railway Service of Engineers (IRSE), Indian Railway Service of Electrical Engineers (IRSEE), Indian Railway Services of Signal Engineers (IRSSE) and Indian Railway Store Service (IRSS)

Group B officers are directly promoted from Group C.

Group C officers are recruited through the Railway Recruitment Board (RRB). The Group C posts include assistant station masters, drivers, motormen, guards, signal and mechanical inspectors. Here again, staff are divided into technical and non-technical staff.