How to write ng repeat for below Json Data ? : My data is coming as below from service. I have tried key, value but its not working.
I want to display all Product_Groups using ng-repeat in a dropdown.
I am using 
    ng-repeat="value.Product_Group for (key, value) in pgroup track by $index"

 
 [My data is coming like this in console][1]


  [1]: https://i.stack.imgur.com/JH815.png