The authorities of South Calcutta Law College have expelled three accused in the alleged gang rape of a 24-year-old student from the institute, an official said on Tuesday.

Prime accused Monojit Mishra, who was serving as an ad-hoc faculty member at the college, was among those expelled from the institute.

Mishra, along with co-accused Zaib Ahmed and Pramit Mukherjee, both students of the college, has been arrested and remanded to police custody till July 1.