// some grid
    $("#grid").kendoGrid({
                    dataSource: {
                        data: data,
                        pageSize: 20
                    },
    ...
    
    //init                           
    var kendoGridScroll = new KendoGridScroll.Model($("#grid"), function(grid, row) {
            grid.select(row); //do whatever you want
        });
    ...
    
    // scroll to required index
     kendoGridScroll.scrollTo(index);
    ...

    // destroy object
    kendoGridScroll.destroy();