I don't know about any good institute of graphics education in Pakistan. All these Arena Multimedia etc are just for paisa kamaying institutes like Pakistan School Systems. I learned each and everything myself like Photoshop, Illustrator, Flash, Maya 3D, InDesign etc. I am bascially UX/UI Specialist and also professional in designing Apps for iPhone retina and Android based Apps.
I am also working in Maya since 2004 but last two years before i think in 2010, I was joined GNOMON Hollywood 3D Graphics Institute (World's Number one 3D Visual Effects learning institute of Hollywood where majority teachers belongs to HW Industry) http://www.gnomonschool.com/. I was learned Introduction to Maya Online course which cost me around 2000$ (2 - 3 months course). Rest of I learned everything myself.
Recently I have seen "Digital Tutors" www.digitaltutors.com tutorials... they are amazing.