The order was clamped yesterday and would remain in force until further orders, sources in the administration said.
The prohibitory order was imposed on Wednesday at Katigorah area after the reaction of people to the recent Rajya Sabha election opposing the candidature of Congress nominee Sanjay Sinh hailing from Amethi in Uttar Pradesh.
Yesterday it was extended to the entire district after the clash at Bhabhabazar where local people protested against an alleged illegal check gate on the Assam-Mizoram road collecting 'taxes' from vehicles, the sources said.
At least 24 persons, including two police officers and four constables, were injured in the clash between protesters and security forces who also fired in the air to control the situation on the night of February 12.