It seems we have discuss it in other Question Here. Use Div there for resolving this issue.
I have Edited your HTML BLOCK:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<link rel="stylesheet" href="style.css">
<script src="https://code.angularjs.org/1.2.9/angular.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/angular-ui-bootstrap/0.10.0/ui-bootstrap-tpls.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/ng-table/0.3.3/ng-table.min.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="myApp">
<table ng-table="tableParams" class="table" ng-controller="ctrl">
<tbody>
<tr ng-repeat="foo in data">
<td data-title="'Name'">{{foo.name}}</td>
<td data-title="'Age'">{{foo.age}}</td>
<td ng-attr-title="{{foo.Desc}}" data-title="'Remarks'" >
<div ng-attr-title="{{foo.Desc}}">{{foo.Desc | limitTo: 15 }} {{foo.Desc.length > 15 ? '...' : ''}}</div>
</td>
</tr>
</tbody>
</table>
</body>
</html>
Complete Code with Script see this PLUNKER