Indian Railway Catering & Tourism Corporation Limited (IRCTC) released the official application for Windows 8 and also for the Windows Phone series. This application allows to book train tickets and also the following
Plan my travel
Check PNR Status
Frequent Passenger Info
It supports Windows 8 PC, Tablets and Phones.
Phone application screenshots
Screenshots of Windows 8 PC Application
Download the official IRCTC application for Windows 8 PC and tablets and for Windows Phones