$(document).ready(function () {
$("#tbl .cntname").click(function () {
var row = $(this).closest('tr');
// var id = $(".cntcode", row).text().trim();
var id = $(".cnt", row).text().trim();
alert(id);
});
});
<table id="tbl">
<tr>
<td class="cntcode">
@item.countrycode
</td>
<td class="cntname">@item.Name</td>
<td class="cnt">401</td>
</tr>
</table>