Hi Pradeep,
The problem is that the DataView.RowFilter is getting failed in this aspect. You could see the same issue when applying the DataView.RowFilter to the DataGrid.
To get this working properly, set the milliseconds value to zero in the DateTime constructor. Please refer to the modified sample below that works fine.
DateTime tt = DateTime.Today;
DateTime date = new DateTime(tt.Year, tt.Month, tt.Day, tt.Hour, tt.Minute, tt.Second, 0);
Here is the sample download link
http://websamples.syncfusion.com/samples/Grid.Windows/F62079/main.htmRegards,
Rajagopal