Hi Diwakar,
Ok, I took a look at the program code...
The "old" program /SAPSLL/STAWN_RETRANSFER takes any Product which has changed (any change), and any Product which has new classification.
The "new" program /SAPSLL/SWNAV_RETRANSFER takes any Product which has new classification.
So, depending on your GTS version, I suggest you use the new program, to avoid the symptoms you are seeing. See SAP Note 2155652 for the applicable Support Packages.
Hope that helps.
Regards,
Dave