Hi Kamal,
 if you want to run your .net application on Linux check out
http://www.mono-project.com/Main_Page  This is an open source project aimed
at translating the .net environment to Linux.

 There are some limitations, such as the WinForms namespace is not fully
implemented so if you have a Windows app it will probably not translate well
to Linux, you will also have to check and see what other namespaces are not
supported.

Hope that Helps
Mark R Dawson.

www.gomono.com

The Mono project allows deployment of .NET on Linux. I am certain there are
some gotchas, but I know people who have been quite successful doing this.