<script src="http://code.angularjs.org/angular-1.0.1.js"></script>
<div ng-controller="MyCtrl">
<select ng-model="India_dropDown" id="indiaselect" ng-options=" x for x in names1">
</select>
<select ng-model="Pakistan_dropDown" id="pakselect" ng-options=" y for y in names2"></select>
<br/>
<button type="India" ng-click="indiaDropDown()">India </button>
<br/>
<button type="Pakistan" ng-click="pakDropDown()">Pakistan </button>
</div>