sri1979 :
In office i have an internet connection and i have an android mobile so, i would like to know how to connect pc internet to my android mobile.
Not sure view Bluetooth. I know to do it via Cable and WiFi. Cable requires rooted phone and android drivers on your PC and it is more complicated. You can do easily by WiFi by using hotspot on your PC. It could be done by installing Connectify app. (windows 7 or higher only for AP usable by phone)
http://www.connectify.me/