Railway Employee Self Service ( RESS ) has been designed and developed by Centre for Railway Information System (CRIS). This is an Employee Centric Application and has been designed to provide all the information, which may be needed by a Railway Employee. RESS is a digital platform for Indian Railway employees to access their personal and financial information, leave management, and more. Learn how to register, log in, update mobile number, and troubleshoot issues with RESS portal and app. Overview:- Railway Employee Self Service developed by CRIS under AIMS portal, works best in Modern Browsers like Google Chrome, Mozilla Firefox etc. iPhone / Apple mobile users can also access RESS application through the mobile version iOS app for their salary details.