Should AMU Students be banned from expressing them selves on social networks and groups ?

Recently the AMU Administration has suspended a student Mr. Adil Hosain for voicing his opinion about the functioning of the administration.
the charge say "tarnished the image of University".
Do you think that the step to suspend a University student is acceptable ? Should the students be banned from participating in the group or community discussion on the internet ?
Please write your comments and views in the comment box below.
The flowing link shows the suspension Order
http://www.scribd.com/doc/32526008/Suspension-Order