A mild heat wave is sweeping over Dhaka, Sylhet, Khulna and Barishal divisions, said Bangladesh Meterological Department (BMD) on Monday. The heat wave is also sweeping over some regions of Chattogram, Rangamati, Chandpur, Cumilla, Noakhali, Feni, Cox’s Bazar, Rajshahi, Pabna & Nilphamari and it may continue, BMD said in regular bulletin. About