A police official said that Deputy Superintendent of Police Mohammad Yousuf was beaten by a mob and his bullet proof police vehicle set ablaze during clashes between protestors and law enforcing personnel.
He said the injured officer has been taken the district hospital for treatment.
Clashes broke out soon after Friday prayers as a large number of people protested against the alleged "persecution" of Rohingya Muslims in Myanmar.
He said miscreants started pelting stones at the cops, who used batons and tear smoke shells.
Intermittent clashes were going on till last reports came in and a total of six policemen were injured.
Separatists leaders had called for peaceful protests against the alleged "persecution" of Rohingyas and show solidarity with them.