Hi YPandey,
I'm not so sure if I understand what you are trying to accomplish. The PowerPivot Dashboard is for the ITPro user (administrators), and not for the end users. Also, you cannot edit a PowerPivot workbook in the browser. You can, though, do the analysis, slice
and dice whatever was created in the Excel desktop client with PowerPivot for Excel add-in and upload it to a PowerPivot enabled SharePoint library.
Can you give more details?
Best,
Mariano
Mariano Teixeira Neto Analysis Services SQL Server BI Microsoft Corp.