Dear Ravi
check may be:
Dynamic Label Determination - Global Label Management (EHS-SAF-GLM) - SAP Library
And subchapter therein: "Use of the report language"
May be check as well:
Printing Labels Using a PC - Global Label Management (EHS-SAF-GLM) - SAP Library
Manual Print Request Generation - Global Label Management (EHS-SAF-GLM) - SAP Library
You will find hints about "Report language" selction for GLM labels
C.B.