New Delhi: 19 Jan 21 We have taken a little risk by reopening schools, Delhi Education Minister Manish Sisodia said today as students of classes 10 and 12 returned to their classrooms after 10 months when the coronavirus lockdown was enforced. Schools across Delhi have since remained shut in view of the COVID-19 pandemic.The step had to be taken to prepare students for practical exams and pre-boards, he told NDTV after reviewing Covid-safety measures at various schools this morning.He also tweeted pictures with students doing lab work.