Thanks for the reply josh!
Yes I used : npm install -g ionic cordova
It was all working fine and suddenly the next day the ionic commands didn’t work for some strange reason.
Here are the paths set in my PATH variable =
C:\Users\RamithRD\AppData\Roaming\npm;C:\Program Files\Java\jdk1.8.0_60\bin C:\adt-bundle-windows-x86_64-20130522\sdk\platform-tools;C:\adt-bundle-windows-x86_64-20130522\sdk\tools;C:\apache-ant-1.9.6\bin;
