The Centre for Railway Information Systems (CRIS) of the Indian Railways has launched Rail Radar – an online portal which allows the public to track train movement in near real time on Google Maps.
The interactive map shows train movements all over the country with tiny blue and red arrows – trains highlighted in blue indicate those that are running on time while the red markers indicate the trains that are delayed or behind schedule.
To get started, you can zoom-in to any location /city on the map to see all the trains which are arriving at the station or have just departed. Or you can use expand the left sidebar to search trains by name, by train number or by the station name.

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If you click a particular train, the map will also show the exact route of the train including all the stops and the current location of the train. The train markers highlighted in blue indicate trains that are running on time while the red markers indicate trains that are delayed or behind schedule.
Indian Railways operate more than 10,000 trains everyday, out of which RailRadar can spot about 6,500, which is an impressive number to start with. At present, RailRadar is configured to update itself every 5 minutes so the train locations shown on the map can be slightly off, but it’s good enough.
The information users see on RailRadar comes directly from Indian Railway’s train tracking data. This data in turn comes from GPS units on the trains.
Rail Radar site is extremely useful and it will work on your mobile phone as well.