Jquery datatable 1.10.16 not binding Json Response to table

This is my response from action method:

{
    "draw": 1, "recordsTotal": 2, "recordsFiltered": 2, "data": [
        { "ISIN": "IMF284L016", "SubSchemeName": "Geliance jocused Marge Map  Plan-Growth Option", "TotalAmountInvested": 400.0000, "CurrentValue": 507.402400, "Client": "23", "ClientName": "Lweta Kain      " },
        { "ISIN": "IKF24K01o", "SubSchemeName": "", "TotalAmountInvested": 0.0000, "CurrentValue": 0.000000, "Client": "23", "ClientName": "Uweta Kain      " }
    ]
}

Below is my code

$('#orderBookTable').DataTable({
            "pageLength": 50,
            "bProcessing": true,
            "bServerSide": true,
            "ajax": {
                "url": "/Fund/Get",
                "type": "POST",
                "datatype": "Json",
                "data": function (d) {
                    d.clientCode = $("#sltClientName").val();
                },
                "columns": [
                    { "data": "SchemeName" },
                    { "data": "Client" },
                    { "data": "Invested" },
                    { "data": "CurrentValue" },
                    { "data": "CurrentValue" },
                ],
                "fnCreatedRow": function (d) {
                    debugger;
                }
            }
        });

please have look in to it. My server side code returning JsonResult using Json method