<table class="table table-striped table-condensed table-hover rsk-tbl vScrollTHead">
<thead>
<tr>
<th>Risk Element</th>
<th>Description</th>
<th>Risk Value</th>
<th> </th>
</tr>
</thead>
</table>
<div class="vScrollTable">
<table class="table table-striped table-condensed table-hover rsk-tbl vScrollTBody">
<tbody>
<tr class="">
<td>JEWELLERY</td>
<td>Jewellery business</td>
</tr><tr class="">
<td>NGO</td>
<td>none-governmental organizations</td>
</tr>
</tbody>
</table>
</div>
.vScrollTBody{
height:15px;
}
.vScrollTHead {
height:15px;
}
.vScrollTable{
height:100px;
overflow-y:scroll;
}
having two tables for head and body worked for me