In Bihar, police have arrested 77 persons, including 19 members of an organised gang, for facilitating cheating in the Block Project Officer, BPO and Block Assistant Officer, BAO examinations. Police said, the accused used bluetooth facility in mobile phones to enable the examinees to write the examinations. The examinations were held for 533 posts each of BPO and BAO.ADG (H/Q) Ravindra Kumar has told that the mastermind of this case has also been arrested. Rupees one lakh cash alongwith 63 mobile phones and 19 four & two wheelers has been seized. The accused used blue tooth device to enable the examination to write the paper.