Hello, Kalhara,

Until the selectable feature gains more popularity, you can implement your own logic to make the cells appear selected by adding and removing the "k-state-selected" class on click.

 $("#pivotgrid").on("click", ".k-grid-content td", function(e){
        var cell = $(e.target);
         cell.toggleClass("k-state-selected");
         var cellInfo = pivotgrid.cellInfoByElement(cell);
         console.log(cellInfo);
});

As for the data for the selected cell, we already have a cellInfoByElement() method that can be used:

https://docs.telerik.com/kendo-ui/api/javascript/ui/pivotgrid/methods/cellinfobyelement

Here is a sample runnable Dojo for your convenience:

https://dojo.telerik.com/uqUDErON

Regards,
Alex Hajigeorgieva
Progress Telerik