Hello Christian,
Thanks for your reply.
Generation mode is not giving any type of error 
.
But yes , in DSM , we are on EHP 7 for SAP ERP 6.0 while on managed system , we are on EHP 6 for SAP ERP 6.0.
DSM:
SAP_BASIS 740 011
SAP_ABA 740 011
Managed System
SAP_BASIS 731 014
SAP_ABA 731 014
As per my understanding for DSM , we can have version mismatch between DSM and Managed system i.e. version in managed system could be lesser than version from DSM system.
Regarding OSS note , I have not found as such related to this type of issue.
Thanks in Advance
Samyak