The group held banners urging Bulu to resign.
The group also referred to Bulu as a "kayyum," which means trustee, to underline that he wasn't elected and is not fit for the position.
Bulu, who has long been a member of the ruling Justice and Development Party (AKP), was appointed as the rector of Boğaziçi University on Jan. 2.
Shortly after his appointment, it was revealed that his academic works were filled with plagiarism.