IIT-Madras turns into 'Covid-19 cluster', 71 test positive; departments, labs, library shut TNN | Updated: Dec 14, 2020, 12:26 IST IIT-Madras has temporarily shut down its academic zone, including departments, labs and library, and quarantined hostelites and staff after nearly 71 people, including 66 students, tested positive for Covid-19 infection since December 1. This is the first big cluster seen by the city after campuses reopened their gates to final year students. IIT-Madras CHENNAI: IIT-Madras has temporarily shut down its academic zone, including departments, labs and library, and quarantined hostelites and staff after nearly 71 people, including 66 students, tested positive for Covid-19 infection since December 1. This is the first big cluster seen by the city after campuses reopened their gates to final year students.