New to code Igniter Project

[eluser]revanth[/eluser]
Hi,

I am developing a project in codeigniter. I am getting some problem plz help me. The problem is

here is the url of the project

http://localhost/wigscodeig/ here is the url when i am doing this i am getting my project but when i go into the links
and when i am going into the subcategories the url is

http://localhost/wigscodeig/wigs/subcategories/3

i am getting an error as page not found

here my controller name is wigs and in that i had a function with subcategories but it getting not found plz help me in that situation