use response data in columndef datatable jquery

I am using datatable jquery.I want to use Sr_no in data-id of td tag but How to get data of Sr_no.

or you can say that I want particular data from data reponse

I have highlighted in code

$("#fir").dataTable({
    "bProcessing": true,

    "sAjaxSource": "paid.php",
    "sDom": "<'row'<'col-sm-6'l><'col-sm-6'f>r>t<'row'<'col-sm-6'i><'col-sm-6'p>>",
    "sPaginationType": "full_numbers",
    "aoColumns": [

        {"mData": "Sr_no"}, <------ I dont want to add this column in table but I want to use value
        {"mData": "Category_Name"},
        {"mData": "Vendor_Name"},
        {"mData": "date"},
        {"mData": "Price"},
        {"mData": "Payment_Mode"},
        {"mData": "remark"},
        {"mData": "edit"},
        {"mData": "cancel"}
    ],
    'columnDefs': [
        {
           'targets': 1,
           'createdCell':  function (td, cellData, rowData, row, col) {
               console.log(row,col);
              $(td).attr('data-id',Sr_no);  <----------------
           }
        }

     ]

});

>Solution :

You can use rowData.Sr_no to get the value of Sr_no for each row. Change targets: 1 to

{
   'targets': 1,
   'createdCell':  function (td, cellData, rowData, row, col) {
       console.log(row,col);
      $(td).attr('data-id', rowData.Sr_no);
   }
}