Sriram,
Thanks for you effort again.
Yes I am taking care of rowIndex. I just tried to hard code some values to add the grid. The below code is only adding first item to the grid.
selectedTagListGridObj.setCellValue(1,1,"one"); --> This line works as expected
selectedTagListGridObj.setCellValue(2,1,"two");
selectedTagListGridObj.setCellValue(3,1,"three");
Thanks
Shaji