Server pagination after page change new data is not rendered

var dT = table.DataTable({
                        "ajax": { "url": url, "cache": false, "type": "POST" },
                        "columns": cols,
                        "serverSide": true,
                        "cache": false,
                        "processing": false,
                        "destroy": true,
                        "language": {
                            "emptyTable": "No data available in table",
                            "info": "Showing _START_ to _END_ of _TOTAL_ entries",
                            "infoEmpty": "No entries found",
                            "infoFiltered": "(filtered1 from _MAX_ total entries)",
                            "lengthMenu": "Show _MENU_ entries",
                            "search": "Search:",
                            "zeroRecords": "No matching records found",
                            search: "_INPUT_",
                            searchPlaceholder: "Search from below results.",
                            "paginate": {
                                "previous": "Prev",
                                "next": "Next",
                                "last": "Last",
                                "first": "First"
                            }
                        },
                        "pageLength": 10,
                        "pagingType": "bootstrap_full_number",
                        "dom": "<'row'<'export-tool margin-right-10'>r><'table-scrollable't><'row'<'col-md-4 col-sm-12 margin-top-10'li><'col-md-8 col-sm-12 margin-top-10'p>>", // default layout with horizobtal scrollable datatable
                        "order": orderDefault, // set first column as a default sort by asc


                        "fnDrawCallback": function (oSettings) {

                            alert( 'DataTables has redrawn the table' );

                            $('#table-region').unmask("");
                            var totalRecords = oSettings.fnRecordsTotal();
                        },
});

I am using Datatable with backbone JS. While loading the first page my callback function has been called and data will be rendered in table. When i change page number data comes from server my call back is not called and data is not rerendered.

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