Hello Karuna,
Do you need to create a pie chart at design or runtime? If you need to create it at runtime, then the example at the bottom of this page might be helpful for you:
http://devexpress.com/Help/Content.aspx?help=XtraCharts&document=CustomDocument2978.htm
If you need to create it at design time, please see the following tutorial:
http://devexpress.com/Help/Content.aspx?help=XtraCharts&document=CustomDocument2457.htm
(Note that you need to choose the Pie view type instead of Bars here)
Do they help you? By the way, what particular difficulties are you experiencing when creating a Pie Chart in ASP.NET? Probably, you can post some code here?
@.
R&D, .NET Team.
PS. If you wish to receive direct assistance from our Support Team, use Support Center at http://www.devexpress.com/sc.