Hi Arpita,
Thanks for using Syncfusion products.
We have prepared a sample and tried to meet your requirement. In the sample, we have applied the shadow effect and restricted clicking of background content by bounding the IsBusy property of SfBusyIndicator with background content's Opacity and IsHitTestVisible with a value converter.
Please let us know whether the provided sample meets your requirement.
Regards,
Jessie
Attachment:
BusyIndicator_974fca6f.zip