Display table according to report group header in ireports

Hi

I have created progress  reports using ireports.I have creted report group header with group expression as a admission number.The complete report has to be organize by the admission number

.But in my report i have to use tables.For that i have created different dataset and different group nme also has been created.But i need this tables has to be print accoring to main report group header.Can anybody 

please help me how to do this.