You are downloading the IRCTC XAP file v220.127.116.11 for Windows Phone. IRCTC is a free and useful Travel app: IRCTC's App provides booking facility of Railway tickets online and offers other services like checking reservation status, train schedules, train ... You can now download the offline XAP file to install & try it.
Download Locations for IRCTC 18.104.22.168 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline IRCTC XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.