Delhi schools brace up to reopen for classes 10, 12 Delhi schools brace up to reopen for classes 10, 12 Delhi schools are preparing to reopen for classes 10, 12 students after the Covid-19 pandemic. advertisement HIGHLIGHTS Physical attendance is not compulsory and students will attend schools only with consent of parents. Only 15 students will be allowed at a time in the classroom. Staggered and shorter class hours, frequent sanitization, and entry and exit through multiple gates are among various new ways adopted by schools in Delhi as they prepare to welcome students of classes 10 and 12 back on Monday, for the first time since the Covid-19 pandemic forced closure of educational institutes in March last year.