The entrance test was conducted on June 13 and some university teachers claimed that they had received emails of the engineering test paper hours ahead of the exam.
Taking cognizance of the reports, the varsity had decided to cancel its entrance exam for Bachelor of Dental Sciences (BDS), which was scheduled yesterday.
"A preliminary inquiry, based on the details available, hints at the possibility of a breach in the examination system with respect to B Tech Entrance Test that was conducted on June 13, 2015.
"A fresh B.Tech Entrance Test would be conducted on June 27. The postponed BDS Entrance Test will now be held on June 25," he said.
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Fresh Admit Cards would be issued to all the applicants for these two programmes.
"Necessary details will be put out on the university's website and will also be conveyed to every examinee through e-mail and SMS," Ranjan added.
Jamia signed a contract with Computer Maintenance Corporation (CMC), a subsidiary of Tata Consultancy Services (TCS), to handle the online admission forms and other related work.
"Jamia Millia Islamia views the matter very seriously and regrets the inconvenience caused to the students and parents," the spokesperson said.