How to update specific kendo grid cell value on databound event?

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jQuery

MVC4

Update Specific kendo grid cell value on databound event. 

items[i].set("strBillAmount", x) produces "NaN" in grid cell

What I have tried:

var GridDataBound = $('#gridId').data('kendoGrid');
var count = GridDataBound.dataSource.total();


function OnDatabound(e) {

var items = this.dataSource.data();
for (i = 0; i < count; i++) {

var number = parseInt(GridDataBound.dataSource.data()[i].strBillAmount);
var Symbol = { style: "currency", currency: "INR" };
var x = number.toLocaleString("hi-IN", Symbol);
alert(x)
this['strBillAmount'] = x;
//items[i].set("strBillAmount", x);

}
}