Hi viveksan3,
According to the screenshot of Device Manager that you have posted, it appears that your system was shipped with Dell Wireless 1502 802.11b/g/n wireless card. It is a standalone wireless card and doesn't have Bluetooth capability. Please share if you were able to connect to Bluetooth devices prior to upgrading to Windows 8. Also, please share if you were using any external Bluetooth adapter/dongle to connect.
Please reply with the information. I would be glad to assist.