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IJT officials say that they would lock down entire Islamabad if the suspects were not arrested soon
Group told education minister not to visit campus
Varsity says these pupils have been identified on the basis of evidence.
Despite ban, student organisation stages rally at Punjab University; spokesperson says notices issued.
Spokesperson says it does not have authority to ban student activities.
Over 125 security officials deployed on campus to maintain peace
Students announce nationwide strike to press for their demands
Say new vice-chancellor has taken softer stance on past violence by student union