To get the value of radio select, add [$index] to each ng-model like the following:
<td><input type = "radio" ng-model = "classes.satisfies[$index]" value = "Country1"> India</td> <td><input type = "radio" ng-model = "classes.satisfies[$index]" value = "Country 2"> US</td>
The above would give you the result dynamically in AngularJS.