Best offline Railway Time Table for Sealdah Howrah division is here. Now no need to carry a time table book in your pocket. Now get this on your iPhone.
It is updated with revised time table. Just enter your source and destination station and get train information between those stations. You can also add day or time as search parameter.
Best train for your current time/selected time will be marked to easily found it. You can also search trains by entering train number. The app can be run without internet connectivity.