Praveen,
With our JomSocial profile plugin, you do have the option to use the multi-profile abilities built into JomSocial. However, JLinked and JFBConnect does not currently automatically integrate with the JSPT add-on.
However, we know many users have the combination working together just fine, but I believe the user can only select their profile after they've registered using JFBConnect. We haven't done much of the testing with JSPT though, so I can't really give many details about how they can work together.
Alex