I want to get Full URL including URL Parameter in my module code.

For example 

From This URL

http://bpm-dnn-jay/Search-Space-For-Rent/Houston

TabController.CurrentPage.FullUrl

Gives me http://bpm-dnn-jay/Search-Space-For-Rent 

only I need to get last parameter from URL (Houston)

I also tried 

Globals.NavigateURL(this.TabId, this.Request.QueryString["ctl"], UrlUtils.GetQSParamsForNavigateURL());

How can I get that?