Why does the volume chart indicator not work on NIFTY or other Indices?
The volume chart indicates how many shares/contracts are bought and sold over a given period of time.
Indices, since they are neither stocks or contracts, they aren't traded directly. (they are traded through derivatives or ETFs)
Since they aren't traded directly, the concept of volume will traded will not be applicable and you will not be able to add volume-based indicators to the charts.