The education department will put up a list of vacancies in every junior college in the Mumbai Metropolitan Region so that students can apply offline accordingly once the online admission process is over.
The offline process will begin after July 12, and the college-wise list of vacancies will likely be displayed on July 14 in the deputy director's office at Charni Road.
The offline admission process is for those students who are not allotted a seat in the online process, for international board students who get their final mark sheets later, and for Central Board of Secondary Education students who appear for the school-based exam instead of the board exam.
However, in the past two years several students who were unhappy with colleges they were allotted in the online process, also rushed to apply offline.
Several top colleges still have vacancies for the third round of admissions.
Saturday was the last day for securing seats for those whose names had appeared on the second merit list released on Wednesday. Until Saturday afternoon, 22,110 students who were allotted in the second round had secured seats.
At St Andrew's College, 120 seats were vacant in all three streams (arts, science, commerce), while at Hinduja College in Charni Road 60 commerce seats were vacant in the aided and unaided sections overall.
Ruparel College in Matunga and Jai Hind College at Churchgate also had seats to surrender, though they did not have details of how many.
The third and final online merit list will be declared on July 10. Students will have two days to pay their fees and secure the seat.
"The cut-off is likely to drop by one percentage point in each of the streams," said Jyoti Thakur, vice-principal of Jai Hind College.