.- cum centre superintendent Yogendra Prasad Singh and Barhara block development officer (BDO) Jai Vardhan Gupta in connection with Bihar Public Service Commission (BPSC) prelims test paper leak case. <br />''<br />''The examination was cancelled after the questions went on viral on social media before the commencement of the test last Sunday. Gupta was deputed as a magistrate to oversee the BPSC Combined (Preliminary) Competitive examination at the Veer Kunwar Singh College centre. The two others arrested were lecturer- cum- examination controller Sushil Kumar Singh and Agam Kumar Sahay, lecturer – cum – an assistant centre of the same college in Ara. These four persons were sent to jail after producing them before the court of Chief Judicial Magistrate at Patna.<br />''<br />''The additional director General of EOU Nayyar Husnain Khan told AIR the Special Investigation Team (SIT) led by SP Sushil Kumar Singh has been investigating the case from all angles.<br />''<br />