After 60 people, including students and faculty, tested positive for COVID-19 in IIT-Guwahati, the institute has now been demarcated as a containment zone by the district authorities.
Contact tracing of those who have been in contact with the persons who fell ill due to the infection is going on.
Earlier, the institute authorities were forced to impose restrictions on the campus after several cases were reported from within the campus, an official said on Wednesday.
Almost 99 per cent of the cases were people who returned to the campus from outside Assam after holidays, said Parmeshwar Iyer, Dean-PR, IIT-Guwahati.
Restrictions have been imposed in the hostels, which makes it mandatory for the students to take permission before leaving, Iyer said.
Also read: Over 50 COVID-19 cases in IIT-Guwahati, restrictions imposed