Rishabh14,
I only see your ehthernet adapter.
Places to look to see if your Connection is enabled
Since I don't see a wireless adapter listed, look in the device manager, network adapter and see if it's listed. Is there any yellow exclaimination marks or red x's?
I would shutdown the computer.
Unplug the computer from the wall. Press and hold the power button for 30 seconds.
Plug the computer back in. When you log in, the computer will look to see if any new hardware device was installed.
Rick