National University (NU) authorities today suspended classes of all colleges under the university due to the ongoing heat wave in the country. The authorities of the national university will announce resumption of classes considering overall weather condition, an official release said today. The government today decided to keep all primary, secondary schools, colleges and madrasahs closed from April 21 to April 27 as the entire country is under reeling from severe heat wave. Source: Bangladesh Sangbad Sangstha