Controller is not working

Not able to display the contents from the database.
The PHP is returning jason encoded value but the controller is not triggering for a particular form.
There is one more controller outside the form for camera which is working fine.

<ion-content >

<div class="list">

<div class="button button-full button-stable">
  Category of crop 
   <label class="item item-input item-select">
    <div class="input-label">
    <select ng-app = 'test' ng-controller="crop_cat">
      <option ng-repeat="c in data"> {{c.crop_cat_name}} </option>

<div ng-controller="ExampleController" padding="true">

<button class="button button-full button-assertive" ng-click="takePhoto()">
Take Photo

<button class="button button-full button-assertive" ng-click="choosePhoto()">
Choose Photo

<img ng-show="imgURI !== undefined" ng-src="{{imgURI}}" style="text-align: center">



And My controller.js

                       .success(function(data) {
                                $ = data;

Please help