I want to create universal app which can work in Windows 8 Desktop and Windows phone 8 and higher version.
Can anybody suggest what tools I should use?
Visual Studio - Version?
Any special plug in with Visual Studio?
For Windows 8 and Windows Phone 8 you'll need Visual Studio 2012 or higher. Just check the project templates for the desired project type:
However:
Please note that your so called "higher versions" will only work up to Windows 8.1 and Windows Phone 8.1.
If you want to create and deploy the same app for Windows 10, you have to use Visual Studio 2015!