hello friends,
can anyone help me with a tutorial on C#.. so tat it'll be useful for my project work.. also some codes with explanations are invited... thanks in advance...

Take a look here: http://www.csharp-station.com/Tutorial.aspx

These are basic C tutorials rather than C# but still may be of use as they explain the principle aspects pretty well

http://www.vtc.com/products/cprogramming2007.htm

Animal:
thank you animal, the link was very useful...

Webrat:
thank you Webrat, there r also C# tutorials from the programming area included in tat site!..

Is it allowed to write programming tutorials for BC? I always thought BC allows only tutorials related to problems or confusions.

If you want to write a tutorial for submission, be our guest. You might want to review the current ones to get an idea of how ours look.