On the basis of an enquiry report, show cause notices have been issued to 23 teachers, said Anurag Verma, officiating vice chancellor and secretary, higher education.
The report found marked difference in the marks obtained by 17 of them in Academic Record and Research Performance (ARRP), and interview.
"They were unjustifiably awarded more marks in the interview than the ARRP," he said.
Verma ordered the university registrar to take into account other irregularities that have come to light in the enquiry report and to put up proposal within a week, detailing required action that may be initiated against the guilty.
"This way undue favour was given to the candidates in selection by arbitrarily increasing the total interview marks to 50," he said.
Besides, there were 8 candidates who have been given exemption in qualifications laid down under National Eligibility Test (NET), he said.
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