Android Development - Command "adb devices" not listing my device

Android Development - Command "adb devices" not listing my device

I see many people has this problem and so I see many solutions as well.
But none is working.
I am having Ainol Novo8 Dream QuadCore Tablet running Android 4.1.1.
For above I have download usb_driver i got from somewhere but window is
not taking it. It says it is already up-to-date. Even after uninstalling
the driver it does not take mine but update from net. My device is fully
connected through USB without Yellow warning. Do, I still need to use
usb_driver I got from somewhere for my Tablet ?
I read about SDK setup, but I did not find it anywhere. I have Eclipse
with ADT from Google Developer page. Also, there were no ....
google/usb_drive/ folder exist. For info, Virtual Device is working
correctly on my Eclipse setup.
I read about two files which looks important: adb_usb.ini and
android_winusb.inf. Both are not present in my installation. Though in the
downloaded usb_driver for Ainol android_winusb.inf exist.
Tried with "adb start-servers" and adb kill-servers". No help for "adb
devices".
My folder structure is
C:\Eclipse_N_ADT\adt-bundle-windows-x86_64-20130522\sdk
I have done with USB Debug Mode on. Notification is showing this. I
removed the slide password thinking if it can interfere with. My device is
rooted by default.