For this example I will be deleting the "ESPN Cricinfo" incon that sits in the middle of the 4th home screen. I accidentally placed it on the same screen as an existing icon for the same app.
Firstly you need to select the icon you wish to delete. To do this you need to hold your finger on the icon for a few seconds until the screen looks like the image on the right with the icon you selected looking a little bit "ghostly". After selecting the icon you will notice that the "Apps" icon from the bottom right hand corner has now turned into a bin with the word "Delete" underneath it.
You need to drag the icon from where it is down to the bin. After doing this the icon will be gone from the home screen, however the app will not be uninstalled from the phone and you will be able to replace it on the home screen easily if you wish, or if you delete the wrong icon by mistake.
Source : mobilephonetipsandtricks