Communicating between widget Portal issue

[Ankit Singh5]

I am using $rootscope.$emit() for communicating between widget and for listning $rootscpe.$on().

i am having two widget say A & B.

Step 1. Firstly I am sending data from A to B by using 

$rootScope.$emit('saveContinueSkillBehave', '');

Step 2. In B widget I am fetching by using 

$rootScope.$on('saveContinueSkillBehave', function(event,showCard) {

            // back to A from B
    $rootScope.$emit("saveContinueSkillBehaveTotalSkillPer", {
      "totalSkillPercentage":"100"
    }); 
});

Step 3. In A widget I am fetching by using

$rootScope.$on('saveContinueSkillBehaveTotalSkillPer', function(e, skillSaveData){
    console.log(skillSaveData);
});

so hear in step 3 when i am consoling the output i am getting console as shown in attach image.

As you can see in image

At first flow i am getting 1 time data on console.

At second flow i am getting 2 time data on console(containing first flow output as well)

At forth flow i am getting 4 time data on console(containing first, second, third flow output as well) and so on...

How can i prevent this and i want only final output. please post if anyone have correct solutions.