"In order to fill vacant seats still available, we have notified the colleges to release the sixth and seventh lists at the earliest," DU Registrar Alka Sharma said in a statement.
The colleges have been warned to take special care to fill the seats reserved for students from scheduled castes or scheduled tribes, the other backward castes or in the disability and other quotas.
In case of non-compliance with the varsity's reservation policy, strict action would be taken against the college.
"The colleges have been asked to lower the cut-off percentage for candidates from the other backward classes (OBC) category by 10 percent of the minimum eligibility criterion for general candidates," the statement added.
As per the fifth cut-off list, there are still vacant seats for Commerce in 23 colleges, for English in 12 and for Economics in 14 colleges.
In colleges like Kirori Mall, Hans Raj, Daulat Ram, Sri Venkateswara and Kamla Nehru, seats remain unfilled in a variety of courses.
"We would be soon coming out with the sixth cut-off list for Commerce and English. The cut-off for Commerce is now 93.25 percent," Minoti Chatterjee, prinicpal, Kamla Nehru College, said.
"We are also coming out with the sixth cut-off list for journalism, which in the fifth list, was declared closed. It has been brought down by 0.50 percent," she said.
The university introduced the four-year undergraduate programme this academic session. Under the new programme, students will be required to study 11 foundation courses in the first two years with the main subjects under disciplines I and II, and applied courses.