Data of one group not getting displayed (in rtf template)

Hi
We have build one rtf template it has 2 sectrions one is main section where data is being displayed with out any issues.
where as for Sub section data is not getting displayed though there is data in xml file

1) Main section
<?for-each@section:G_ORDER?>
<?for-each:G_PART_NUM?>
data in this porting is getting displayed
<?end for-each?>
<?end for-each?>

2) Sub section at the end of page
<?for-each:G_SCH_SCH_B?>
data in this portion is not getting displayed
<?end for-each?>

Regards
Kamalakar.G