Days after 192 Class 10 students from two schools in Kerala's Malappuram tested positive for COVID-19, a district education officer has said that 91 attended a common tuition centre. "91 students, of the 192 who tested positive, were attending one tuition centre. This has been sealed by the police for now. Other students attending these classes have been asked to stay in home isolation and are being tested," Ramesh Kumar, the education officer, told NDTV.