Kindly anyone could tell me what are exactly files with .inc extension , used in jsp pages.
If these are same as simple jsp pages to be included in another jsp them why atall make them .inc and not .jsp ?
Maybe they have the extension ".inc" to make it clear that they contain just fragments of a JSP, and are not a complete JSP themselves.
As far as I know it's not a standard way of doing things, so you'd have to ask the people who started the project you're working on what their exact reason was to call those files ".inc". (I guess "inc" stands for "include").