While you can find several resources and getting started guides on Silverlight on the Web, Dhaval Faria (ASP.NET MVP from Mumbai, India) and Vikram Pendse (Silverlight MVP from Pune, India) have authored useful articles on oppurtunities with Silverlight 4.

You can learn how to develop Silverlight navigation menu using C# in Visual Studio 2008 with Dhaval and read about the COM Interop opportunities and Indic Support with Silverlight 4 as seen by Vikram.