The victims, Benu, 26, and Dulu, 30, were accused of eight and four criminal charges including robberies and murders, police said.

The police said they arrested the robbers from Baniapara in Araihazar on Sunday noon.

Following the arrestees' statements, the police took them to an abandoned textile mill to nab their accomplices and seize firearms at around 2:45am.

The law enforcers said accomplices of the robbers opened fire on them, forcing them to counter the attack.

During an attempt to flee, Benu and Dulu were bullet-hit and pronounced dead on arrival at Araihazar Health Complex, they added.

Four policemen were injured in the gunfight. Police seized a revolver and 14 bullets from the spot.