Installing ADB drivers for Micromax A89 Ninja - Windows 8 Micromax does not provide any drivers for its phone - Micromax ninja a89. We are trying to use the phone for development and are unable to install device driver in windows 8. 

We tried the adb drivers at  - http://www.droidextra.org/2013/02/06/install-adb-drivers-for-any-android-device.html
and got the error - Windows found driver software for your device but encountered an error when trying to install it. Android ADB Interface- The system cannot find the file specified.

We even tried this link - https://laslow.net/2012/03/14/disable-driver-signature-enforcement-in-windows-8/

But that does not solve the problem. How do we install adb driver for micromax a89? Is there any other workaround to use the phone as a development device?

Regards!
Please try official one - works for most devices:
https://developer.android.com/studio/command-line/adb.html