hi Milin,
you can do this in the report designer. create a new report and then Insert a new Section below the Report Header, suppress everything except for report header A & report header B.
for the Paging for report header A, ensure that New Page After is checked.
go to the Insert menu and choose Subreport and then choose existing report, and then basicinfo report and place in report header A.
repeat the above step for the 2nd report and report header B.
now you'll be able to export both reports into the same .pdf file.
-jamie