There was this bluetooth which always started up whenever I logged into Ubuntu ( Unity or GNOME ) .. and thus consuming my battery if I forgot to switch it off. Ultimately .. I wanted to turn it off and here it is.
Open the terminal and then
NOTE : Backup before you delete !!!
You will find all the applications that run on start up.
To stop the bluetooth from running .. just delete the bluetooth file.
sudo rm bluetooth-applet.desktop bluetooth-applet-unity.desktop
And thats it !!! :) Peace !!!