Ranchi: Police on Thursday registered an FIR against 300 unnamed people in connection with the August 10 march to the Jharkhand assembly over alleged irregularities in recruitment examinations in the state, a senior officer said.The case was registered for allegedly violating prohibitory orders, damaging government property and attacking police personnel. "An FIR has been lodged against 300 unknown people at Vidhan Sabha police station for disrupting the peaceful march to assembly on August 10," Ranchi SP Paras Rana told a news agency. DSP (Hatia) Neeraj Kumar said the case was registered on the basis of a complaint lodged by a magistrate who was deployed near the assembly during the students' march.