In a bomb blast in Khulna , about 150 miles south-west of the capital Dhaka, the chairman of the local council known as union parishad was killed and another local leader of the opposition Awami League was seriously injured on Thursday . Khulna has been a hot bed of violence for quite some time , especially the gruesome murder of a journalist Manik Saha has created a state of panic amongst the residents of Khulna.