Thanks for replies both ESMI and Voodoo .
But, want to know another thing . I have visited some of the wordpress sites designed by big web design / development companies , and all of their source codes are entirely different from what I designed . I know the source code is unique one for a development . But what I say is, when I right click and click ' view source ' , in their source, ' wp-content/themes/ ... ' things are not there . Only the css styles, div ids and classes and etc are there .
But the case is entirely different when viewing the source code of my own theme design in my own website . Even when I use Twenty Eleven theme in my website . When I view the source, everything including file paths, directory paths are shown . Even anybody can see what's the theme used .
Can u please provide me with a solution ?