jquery datepicker not working first click on page load under updatepanel

Hi nagaraju60,

I have checked its working. Check the below screenshot.

<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.10.0.min.js" type="text/javascript"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.9.2/jquery-ui.min.js" type="text/javascript"></script>
<link href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.9.2/themes/blitzer/jquery-ui.css"
    rel="Stylesheet" type="text/css" />
<script type="text/javascript">
    $(document).ready(function () {
        Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
        Sys.WebForms.PageRequestManager.getInstance().beginAsyncPostBack();
        function EndRequestHandler(sender, args) {
            $('.date').datepicker({
                changeMonth: true,
                changeYear: true,
                yearRange: '-5:+0',
                duration: 'fast',
                dateFormat: 'dd-M-yy',
                showAnim: 'slideDown',
                maxDate: '0'
            });
        }
    });
</script>
<div>
    <table>
        <tr>
            <td>
                <asp:UpdatePanel ID="Updatepanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true">
                    <ContentTemplate>
                        <div>
                            <table>
                                <tr>
                                    <td style="font-weight: 700; text-align: center">
                                        <label id="Label2">
                                            From</label>
                                    </td>
                                    <td>
                                        <asp:TextBox ID="TxtFrm" runat="server" class="date"></asp:TextBox>
                                    </td>
                                    <td style="font-weight: 700; text-align: center">
                                        <label id="Label1">
                                            To</label>
                                    </td>
                                    <td>
                                        <asp:TextBox ID="TxtTo" runat="server" class="date"></asp:TextBox>
                                    </td>
                                </tr>
                            </table>
                        </div>
                    </ContentTemplate>
                </asp:UpdatePanel>
            </td>
        </tr>
    </table>
</div>
<asp:Button Text="Save" runat="server" OnClick="Save" />

Screenshot