<div data-ng-app data-ng-controller="myCtrl">
    <select data-ng-model="option1" data-ng-options="option for option in options1" data-ng-change="getOptions2()">
    </select>
    <select data-ng-model="option2" data-ng-options="option for option in options2" data-ng-change="getOptions3()">
    </select>
        <select data-ng-model="option3" data-ng-options="option for option in options3">
    </select>

var option1Options = ["Men", "Women", "Kids"];
var option2Options = [["Top wear","Bottom wear","Blazers"],
               ["W-Top Wear","W-Bottom Wear","W-Blazers"],
               ["K-Top wear","K-Bottom wear","K-others"]];
var option3Options = [["M-Tshirts","M-Casula Shirts","option2 - 3-3"],
               ["M-Jeans","option2 - 3-2","option2 - 3-3"],
               ["M-Blazers","option2 - 3-2","option2 - 3-3"],
                             ["w-Tshirts","w-Casula Shirts","w-option2 - 3-3"]
                             ];
function myCtrl($scope){
    $scope.options1 = option1Options;
    $scope.options2 = [];
        $scope.options3 = [];
    $scope.getOptions2 = function(){

        var key = $scope.options1.indexOf($scope.option1);
                    var myNewOptions = option2Options[key];

        $scope.options2 = myNewOptions;
    };
        $scope.getOptions3 = function(){

        var key = $scope.options2.indexOf($scope.option2);
        var myNewOptions = option3Options[key];

        $scope.options3 = myNewOptions;
    };
} <br/>