After a long time spending over google I find some useful NOTES over how to install D-Link DWA 525 N 150 Wireless Drivers, which are here:
Run command "lspci |grep -i network"
Output will be like :
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
06:02.0 Network controller: RaLink Device 3060
Go to http://www.ralinktech.com/support.php?s=2 and download RT3062PCI/mPCI/CB/PCIe(RT3060/RT3062/RT3562/RT3592)
This will ask for your Name and Mail ID, enter and when you click on Accept this will ask you for save or open. Save file to anywhere on your machine, lets say in /opt/
Go to /opt/ and run following command:
cd /opt
tar zxvf DPO_RT3562_3592_3062_LinuxSTA_V2.4.1.1_20101217.tgz
cd DPO_RT3562_3592_3062_LinuxSTA_V2.4.1.1_20101217
Change following in os/linux/config.mk file
vim os/linux/config.mk
HAS_WPA_SUPPLICANT = n -> HAS_WPA_SUPPLICANT = y
HAS_NATIVE_WPA_SUPPLICANT_SUPPORT = n -> HAS_NATIVE_WPA_SUPPLICANT_SUPPORT = y
After making above changes run following:
make
make install
After successfully completion of above command, run following:
insmod os/linux/rt3562sta.ko
Thats it!!! Setup a wireless connection through Network Connection and Enjoy your wi-fi network :)
