We can enable or disable the client side validations in MVC4 by doing simple configuration / code changes. For enable / disable validations application level: We can use any one of the below two methods (web.config change or Global.asax.cs change) Configuration change in web.config < appSettings > < add key = " ClientValidationEnabled " value = " true " /> < add key = " UnobtrusiveJavaScriptEnabled " value = " true " /> </ appSettings > Code change in Global.asax.cs file protected void Application_Start() { HtmlHelper .ClientValidationEnabled = true ; HtmlHelper .UnobtrusiveJavaScriptEnabled = true ; } For enable/disable validation in a particular view set the below two properties in the View Razor code. @{ ViewBag.Title = "Index" ;...