>i activated project after deletion, but still they r visible under package in workspace tab.
Did you commit at that level before the activation. You must manually commit to process deletions.
>If i migrate package from DEV to QA, will they also move to QA?
If they still show in the repository on the server side, yes.
>What about the cursor issue which i mentioned?
I have no comment on the cursor. That's a completely separate topic and really should probably be posted as an independent thread.
>How to migrate XS services from DEV to QA?
You must assign the packages to a Delivery Unit. Then you can transport via a Delivery Unit.
You use the File->Export option in the Studio and choose SAP HANA Content -> Delivery Unit. Similar process, just with File->Import to bring the content into QA. In SPS6 you can also use the HANA Application Lifecycle Management web application or the Web IDE to perform these actions as well. All of these steps are documented in the Developers' Guide on help.sap.com