The rapid Covid spread within the IIT Madras campus has called attention to safety within educational institutions. Share Via Email | A+A A- Students wash their hands at a college in Chennai, after classes resumed for those in the final year, for the first time since the lockdown was enforced | R Satish Babu Express News Service CHENNAI: Tamil Nadu will test students and staff from more educational institutions across the state in the wake of the sudden spike of Covid-19 cases on the IIT Madras campus. The tests will be done on priority in institutions that have a common dining hall, crowded spaces or a limited number of hostel rooms.