I am in need of multiline in a single column for a particular row . Could you please hepl me for this issue.

The grid can enable multiline for whole grid only. There is no way to set multiline for some cell and use single line mode for other columns.
For all grid, multiline mode can be set as

Technically you can try to use next command after data loading
grid.setCellTextStyle(id,ind,“white-space:normal; height:NNpx”); // NN - necessary height of cell