$scope.$on("MyEvent", function(evt,data){ 

  // handler code here });

app.controller("MyController1", function ($scope, $rootScope) {

​

    //broadcast the event down

    $scope.OnClick = function (evt) {

        $scope.$broadcast("SendDown", "some data");

    }

​

    //handle SendDown event

    $scope.$on("SendDown", function (evt, data) {

        $scope.Message = "Inside SendDown handler 

                          of MyController1 : " + data;

    });

​

    //handle SendUp event

    $scope.$on("SendUp", function (evt, data) {

        $scope.Message = "Inside SendUp handler 

                          of MyController1 : " + data;

    });

});