A case has also been registered against 300-400 unknown people in connection with this demonstration on Tuesday. There was a lot of ruckus in Ranchi during the protest. On Tuesday, the police had lathi-charged the candidates going to the JPSC office to demand cancellation of the results of 7-10th PT conducted by the Jharkhand Public Service Commission recently. After this, a delegation of the agitating candidates met JPSC President Amitabh Choudhary. Choudhary has promised to address their grievances in four days.