The Indian Railway Service of Signal Engineers (IRSSE) is a central engineering services group A cadre of the Indian railways. The officers of this service are responsible for managing the Signal and Telecommunications Engineering Organization of the Indian Railways. Recruitment The incumbents who were Graduates in Engineering used to get selected by the Union Public Services Commission, the apex gazetted recruitment body of the Government of India. In 2020 Railways separated itself from Engineering Services Exam (ESE) and made Indian Railway Management Services (IRMS). Earlier the recruitment used to be through UPSC Engineering Services Exam for Engineers but now after 2 years halt it's through UPSC Civil Services Exam from 2022 ; an all India written test followed by interview for selected candidates. Earlier Top rankers of Electronics and Telecommunication Engineering only used to get the chance to join IRSSE cadre, but now it has become General Cadre or Cadre for all Civil Services aspirants. They are inducted into the service after One and Half years of rigorous training at Indian Railways Institute of Signal Engineering and Telecommunication (IRISET) at Secunderabad and National Academy of Indian Railways (Formerly Railway Staff College) at Baroda and different parts of India. The Indian Railway Management Services is merged into Civil Services in 2022 which now on will be conducted by the Union Public Service Commission (UPSC) of India. The UPSC is responsible for recruiting middle and top-level bureaucrats for the Government of India. Role and function Functional Role : The service abbreviated as IRSSE has the job of managing the vast Signalling and Telecommunication (S&T) infrastructure of the Indian Railways. This basically is techno-managerial in nature. Signalling principles and operating rules. The Signalling is a function essential for Safe Train operations and Maximizing the utilization of fixed and moving assets (Train rakes, locos, Track, Over Head Power Equipment etc.) through interlocking, which is the single most important aspect for ensuring safe train running. Telecom on the other hand caters to Safety related, Operational and Administrative communication needs of the Huge IR network. The Copper Cable, Optical Fibre Network and Microwave Links span several Lakh km. Incumbents of IRSSE are also involved in Construction Projects like New Line, Gauge Conversions, Doubling of Lines in Indian Railways. They can also go on deputations to different Metro Rail Corporations like Delhi Metro, Chennai Metro, Bangalore Metro etc., Rail Vikas Nigam Limited, Railtel Corporation of India Limited,