Multan Garisson Mess. It’s not near KFC. It is like a 10 minute drive the other side of Sadaar.
Amir Rajput don’t own MGM. The current management of MGM has opened it up to functions for civilians which Amir Rajput handle. So they would do the set up in the grounds and provide the catering.
This is separate from the Railway Services club, which you are right about.