APEX LEVEL :The S&T Organization is headed at apex level (i.e. Railway Board, Ministry of Railways) by Member (S&T) (Member (Signal & Telecom) ex-officio secretary to Government of India. He is assisted by two Special Secretary to Government of India rank (equivalent to GM) officers v.i.z Additional Member (Signal) and Additional Member (Tele), Who are in turn assisted by Additional Secretary to Government of India rank Advisor (Signal) and several Joint Secretary to Government of India rank Executive Directors and Directors. S&T Officers may go to general management or ex- cadre posts like AM-IT, AM-Plg etc. The posts of Menmber(Staff)-till date is also ex-cadre in Railways, and an IRSSE may also get to become Member(Staff) also. The posts of CRS and CCRS are also ex-cadre for Technical and Traffic wing, and an IRSSE may opt for becoming CRS or CCRS also at the appex level.