I tried to install through Device Manager. After I connected the phone to my laptop, i got link as \'Celkon incorporated GSM handset\' in \'Other devices\' portion of Device
Right click on mycomputer-->then go to manage-->select your device in other device in Device manager-->then right click on it and select update device driver-->browse my computer for device driver-->then let me pick from a list...--->select show all device and click next--->have disk--->then browse--->then go to sdk-->extra-->google-->usb driver-->then click on android_winusb.inf-->click open
then it will show the adb interface and then install it.