The emergency restriction will remain in force until 12 am on Wednesday from 10 pm on Tuesday, said Rahul Chandra, Rajapur Upazila Nirbahi Officer (UNO).
All kinds of gatherings, meetings, rallies, processions and protests have been restricted in the designated area its adjacent areas during the period.
A BNP faction organised a rally at 3 pm on Wednesdayon Rajapur Upazila Parishad Market premises marking the first anniversary of July Uprising while the local unit Jubo Dal also called rally at the same venue.
Tension escalated in the area over erecting podium and motorcycle showdown by activists of both groups, reports UNB.