CRIS has enhanced the train enquiry system by developing the mobile app and a desktop application on Windows 8 platform for train enquiries with support from Microsoft, he added. National Train Enquiry System (NTES) is railways' back-end system which provides information to the public about train schedules on a near real time basis through various interfaces like nationwide unique rail enquiry number 139, website (www.trainenquiry.com), mobile interfaces, touch screens, enquiry counters and display boards at stations.