Hello pradeep tamanar,
Unfortunately currently it is not possible to implement Pyramid series type with RadChart.
We have logged
your feature request in our public issue tracking system and we have forwarded it to our developers for further consideration but at the moment we have no concrete plans for the implementation of this feature (if there is increased interest, its priority will be raised).
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items