Teachers and officials under Monthly Pay Order (MPO) started their five day long agitation program demanding for implementing 8th national pay scale without any condition.They will enforce strongly agitation program, if their demands are not met within this time, said the leaders of Bangladesh Teachers Association at a press briefing.It is mentioned in press briefing, the teachers and officials will wear black badge from Tuesday to Thursday, an hour work abstention program on Saturday and human chain in front of the national press club on Monday.