So you are using the "Suppress if duplicated" option for S NO and Task fields?
YOu can group on S NO and TASK and palce these to fields on GH2 and place the team members on the details (suppress the GH fields as well).
Or you can conditiaonlly suppress the fields using the PREVIOUS() function instead of using the suppress if duplicated.
previous({table.s-no})={table.s-no}
previous({table.task})={table.task}