For programmers:adding a trailing slash automatically in urls

Hi palz.,
How do i add a trailing slash to all my urls using mod rewrite.,

like for example.,
in our site
mydomain.com/business-india/1 will not work and will show a 404 page
but
mydomain.com/business-chennai/1/ will work
There are thousands of urls like this in our site.

So if any user types:
mydomain.com/business-chennai/1 directly , it will show them a 404 page not found error.


Would be really grateful for any help

This forum is only for questions related to DMOZ. Although there might be someone capable of answering this question I advice you to ask this question in a forum fom webmasters.