sunil wrote:But not sure about the effect of when clubbed in <Directory> directive.
That simply means, that all Options etc. are only valid to files under this Directory and Subdirectories to this Directory (for each level).
Of course, if "/" is specified in the Directory Clause, it means that the corresponding options are valid for ALL files and the whole computer (in case of Linux - Windows have slightly different Pathnames including Drive Letters, which are unknown to Linux).
For a detailed information about the various options and clauses, see the original documentation of Apache. In case of FollowSymLinks and AllowOverride seehttp://httpd.apache.org/docs/current/en ... ml#optionshttp://httpd.apache.org/docs/current/en ... owoverride