Mushtaq,
You may have already found all of this with Google, but just in case, this first one could be very good depending on your needs.
This may be the most usefull. It has floor plans of a working studio campus in PDF form.
http://secondlinestages.com/
This is a small note on Green Screen setup. You gotta have green screen.
http://www.wikihow.com/Set-Up-a-Green-Screening-Studio
This contains about 90 movie studios worldwide. Could be used to reference well known as well as obscure studio’s information.
http://en.wikipedia.org/wiki/Movie_studio
This site has a presentation that shows a lot of organizational diagrams, charts on industry structures and management structures, in case your need includes the money and people side of the studio
http://www.slideshare.net/chakulan/motion-picture-studio-strategy-and-managment-presentation
Hope this is helpful.
Lloyd