Sort Repeater data using tablesorter JQuery plugin in ASP.Net

I have modified the html as per your repeater structure. Refer the below html.

HTML

<div>
    <asp:Repeater ID="rpt" runat="server">
        <HeaderTemplate>
            <table id="sector-list" class="table table-striped table-bordered">
                <thead>
                    <tr>
                        <th>
                            OfferId
                        </th>
                        <th>
                            OfferNo
                        </th>
                        <th>
                            OfferDateTime
                        </th>
                        <th>
                            SalerName
                        </th>
                        <th>
                            OfferStatus
                        </th>
                        <th>
                            Title
                        </th>
                        <th>
                            ContactName
                        </th>
                        <th>
                            Total
                        </th>
                        <th>
                            Action
                        </th>
                    </tr>
                </thead>
                <tbody>
        </HeaderTemplate>
        <ItemTemplate>
            <tr>
                <td>
                    <%#DataBinder.Eval(Container.DataItem,"OfferId") %>
                </td>
                <td>
                    <%#DataBinder.Eval(Container.DataItem,"OfferNo") %>
                </td>
                <td>
                    <%#DataBinder.Eval(Container.DataItem, "OfferDateTime", "{0:dd.MM.yyyy}")%>
                </td>
                <td>
                    <%#DataBinder.Eval(Container.DataItem,"SalerName") %>
                </td>
                <td align="center">
                    <%#DataBinder.Eval(Container.DataItem,"OfferStatus") %>
                </td>
                <td>
                    <%#DataBinder.Eval(Container.DataItem,"Title") %>
                </td>
                <td align="center">
                    <%#DataBinder.Eval(Container.DataItem,"ContactName") %>
                </td>
                <td style="text-align: right">
                    <%#DataBinder.Eval(Container.DataItem,"Total","{0:c}") %>
                </td>
                <td class="td-actions">
                    <asp:LinkButton ID="lnkEdit" runat="server" CommandName="Edit" CommandArgument='<%#DataBinder.Eval(Container.DataItem,"OfferId") %>'
                        CssClass="btn btn-small btn-icon-only icon-edit"></asp:LinkButton>
                </td>
            </tr>
        </ItemTemplate>
        <FooterTemplate>
            </tbody> </table>
        </FooterTemplate>
    </asp:Repeater>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
    <script type="text/javascript" src="http://mottie.github.io/tablesorter/js/jquery.tablesorter.js"></script>
    <script type="text/javascript">
        $.tablesorter.addParser({
            id: "OfferDateTime",
            is: function (s) {
                return false;
            },
            format: function (s) {
                s = "" + s;
                var hit = s.match(/(\d{1,2})\.(\d{1,2})\.(\d{4})/);
                if (hit && hit.length == 4) {
                    return hit[3] + hit[2] + hit[1];
                } else {
                    return s;
                }
            },
            type: "text"
        });
        $(function () {
            $('[id*=sector-list]').tablesorter({
                dateFormat: 'dd.MM.yyyy',
                headers: {
                    0: { sorter: false },
                    1: { sorter: false },
                    2: { sorter: "OfferDateTime" },
                    3: { sorter: false },
                    4: { sorter: false },
                    5: { sorter: false },
                    6: { sorter: false },
                    7: { sorter: false },
                    8: { sorter: false }
                }
            });
        });
    </script>
</div>

Code

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.AddRange(new DataColumn[] { 
            new DataColumn("OfferId"),
            new DataColumn("OfferNo"),
            new DataColumn("OfferDateTime",typeof(DateTime)),
            new DataColumn("SalerName"),
            new DataColumn("OfferStatus"),
            new DataColumn("Title"),
            new DataColumn("ContactName"),
            new DataColumn("Total")
        });
        dt.Rows.Add("1", "1", DateTime.Parse("13/6/2016", new CultureInfo("en-IN")), "SalerName1", "y", "Title1", "1111111111", "50");
        dt.Rows.Add("2", "2", DateTime.Parse("10/6/2016", new CultureInfo("en-IN")), "SalerName2", "n", "Title2", "2222222222", "45");
        dt.Rows.Add("3", "3", DateTime.Parse("9/6/2016", new CultureInfo("en-IN")), "SalerName3", "n", "Title3", "3333333333", "100");
        dt.Rows.Add("4", "4", DateTime.Parse("7/6/2016", new CultureInfo("en-IN")), "SalerName4", "y", "Title4", "4444444444", "30");
        dt.Rows.Add("5", "5", DateTime.Parse("25/5/2016", new CultureInfo("en-IN")), "SalerName5", "y", "Title5", "4444444444", "30");
        dt.Rows.Add("6", "6", DateTime.Parse("24/4/2016", new CultureInfo("en-IN")), "SalerName6", "y", "Title6", "4444444444", "30");
        dt.Rows.Add("7", "7", DateTime.Parse("18/3/2016", new CultureInfo("en-IN")), "SalerName7", "y", "Title7", "4444444444", "30");
        this.rpt.DataSource = dt;
        this.rpt.DataBind();
    }
}

Screenshot