IIT Kharagpur authorities have directed its employees staying in the campus not to venture out, unless it is an emergency, between September 6 and 13 following detection of several COVID-19 cases in the institute.However, faculty members will continue to conduct classes online from home, the institute said in a notification.About 20 COVID-19 cases have been reported from the campus since August 19, an official said on Saturday.In the notification, the institute issued a list of dos and don'ts which also include a ban on entry of outsiders, except those attached to essential services, during the period when all offices inside the campus will remain closed."No employee of the Institute will be permitted to leave or enter the campus until.