Installing ADB drivers for Micromax A89 Ninja - Windows 8

Micromax does not provide any drivers for its phone - Micromax A89 Ninja. We are trying to use the phone for development and are unable to install the 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?