بسم الله الرحمن الرحيم
If your college is located in a city then you may establish Jumuah in the basement of the college. Jamat is a condition in Jumuah i.e. there must be three more persons other than imam and khutbah should be in Arabic language before Jumuah salah and entry should be open for anyone wants to attend. One of the aims of Jumuah is the demonstration of Muslims as community; therefore it is better that only one jamat is held so that collectivity is demonstrated well.
Allah knows Best!
Darul Uloom Deoband
This answer was collected from the official ifta website of Darul Uloom Deoband in India.