Gridview generate extra column on left

I am using asp.net c#.I have following code this code is working fine.But problem is gridview generate one extra column on left.

   <asp:GridView Width="96%"   CssClass="grdclass" ID="grd"  runat="server" AutoGenerateColumns="False" DataKeyNames="STAT_ID"   >
                    <AlternatingRowStyle BackColor="#FFCC99" />
                    <Columns>
                <asp:TemplateField>
          <HeaderTemplate>
                <th scope="col">الهاتف</th>

          </HeaderTemplate> 
          <ItemTemplate>
            <td class="row_style">
                <div class="row_style">
                                   <%#Eval("PHONE_Num") %>
                                </div>

            </td>


          </ItemTemplate>
        </asp:TemplateField>

                    </Columns>
                    <EmptyDataTemplate>No Record Found</EmptyDataTemplate>
                    <HeaderStyle BackColor="Aquamarine" />
                    <RowStyle BackColor="#FFFFCC" />
                </asp:GridView>

Please check above code and guide me where is the mistake or how can i get rid of this problem.