Hello Shrikant,
Thank you for your interest in RadControls for Silverlight.
A Diagram and Graph control is in our development plans but it is not committed to any specific date or release. You can give your vote in our
Public Issue Tracking System (PITS) to affect its priority.
Regards,
Hristo
the Telerik team
Register for the Q2 2011 What's New Webinar Week. Mark your calendar for the week starting July 18th and book your seat for a walk through of all the exciting stuff we will ship with the new release!