Teachers disinfect hands of students upon their arrival at a school in Lahore in this file photo. — AP LAHORE: Punjab Minister for School Education Murad Raas on Sunday announced resumption of classes 9 to 12 from April 19 (today) with 50 per cent students on Monday and the remaining 50pc on Thursday. He said a staggered approach would be implemented in order to mitigate the virus spread. “Classes 9,10,11,12 will open tomorrow April 19th, 2021 with 50% students on Monday and 50% on Thursday,” the minister tweeted. He said this in reference to an earlier tweet in which he had announced the resumption of classes for grades 9 to 12 in Lahore, Rawalpindi, Faisalabad, Sheikhupura, Gujranwala, Gujrat, Sialkot, Multan, Toba Tek Singh, Sargodha, Bahawalpur, Rahim Yar Khan and Dera Ghazi Khan.