Best app to IRCTC Ticket Booking, check pnr status and seat availability between stations. Indian Railway Enquiry helps to get Indian train status and Indian railway information by just entering some information.
Short video highlighting QuickMarks in Indian Train Status for Android v 5.71: Quick, one-click access to Live status of a train, at a station & of trains running from one station to another, as well as list of trains between two stations. Get it on Google Play - https://play.google.com/store/apps/details?id=com.sasyabook.runningtrainstatus
This website provides a medium to check PNR status (Passenger Reservation Enquiry) of Indian Railways train tickets. It is also a Q&A community website for asking questions that relates to Indian Railways.