To integrate WCF service in your ASP.NET MVC project, add the following routing info to your routeconfig file

wcfmvcrouting.cs

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    
    //Extra ignores to support WCF in ASP.NET MVC
    routes.IgnoreRoute("{resource}.svc/{*pathInfo}");
    routes.IgnoreRoute("{resource}.svc");

    routes.MapRoute(
        name: "Default",
        url: "{controller}/{action}/{id}",
        defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }
    );
}