LAHORE - The Punjab University (PU) will remain closed on Monday on account of its 126th convocation. However, the Punjab University campuses at Gujranwala and Jhelum will remain open, official sources said. "Other academic staff including teachers and officials, which  have been assigned tasks, will attend the office," the sources added. Separately, Punjab University Vice Chancellor Prof Dr Zafar Moeen Nasir has urged students to utilize their abilities in positive activities.