Patna, Feb. 1 -- The Class 12 examinations conducted by the Bihar School Examination Board (BSEB) started on Monday following strict security arrangements and Covid-19 protocols. A total of 1,473 examination centres have been set up across the state for conducting these exams. More than 13 lakh students are appearing for the exams from all over the state. BSEB Chairman Anand Kishor said adequate security arrangements have been made for conducting the Class 12 examinations. He said the first shift of the examination on Monday started at 9.30 a.m. For this the students would have to be present in the examination centre 10 minutes prior to the start of the exams. In view of this the students started arriving at the examination centres from 8...