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JavaScript

var countries = ["India" , "Australia" , "Bangladesh" , "India" , "India" , "New Zealand" , "New Zealand" , "Pakistan" , "Pakistan" , "West Indies","New Zealand"];

var recipientsArray = countries.sort(); 
checkedWords = [];
  
for (var i = 0; i < recipientsArray.length; ++i) {
	var count = 0;
  
  for(var j=i;j<recipientsArray.length;j++){
  	if(checkedWords.indexOf(recipientsArray[i]) > -1){
    	continue;
    }
  	if(recipientsArray[i] == recipientsArray[j]){
    	count = count+1;
    }
  }
  console.log(count);
  if(count >= 3){
  	alert(recipientsArray[i]);
  }
  checkedWords.push(recipientsArray[i]);
}