Patna, June 17: New Bihar School Examination Board (BSEB) chairman Anand Kishor today ordered a massive clean-up operation in the board that is reeling from the impact of the Intermediate exam scam.

"We have transferred as many as 271 employees," said Kishor, vowing to ensure transparency in the functioning of the board. "All persons who have been working in one place for three years have been transferred. We will have CCTV cameras in all rooms in the office of the board."

Apart from the exam scam there are reports of huge financial irregularities, including in payments made for purchase and printing of question papers. Kishor said he was looking into every aspect of the board.

Police today took Bachcha Rai, a key accused in the Intermediate exam scam, into two-day custody for interrogation while another key accused, former BSEB chairman Lalkeshwar Singh, and his wife and former JDU MLA Usha Sinha, a non-FIR accused, remained fugitive. Police sources said Bachcha, principal of the Vishun Roy College in Vaishali that is at the centre of the scam, would be questioned on his links with board officials and their connivance in the tampering of results.

Police sources said a team had gone to Delhi in search of Lalkeshwar and his wife, who have been absconding since the scam FIR was filed. Investigations have revealed that answer sheets of some candidates from Vishun Roy College, which produced a number of toppers this year, had been tampered with at Ganga Devi Women's College in Patna of which Sinha was principal.

The police are expected to get a proclamation notice from court, to be followed by a property attachment order, if Lalkeshwar and his wife do not surrender. The police have also approached the Union home ministry to issue a lookout notice for the duo.

Two more accused in the scam, Shail Kumari and Ranjit Mishra, have applied for bail, the orders on which have been reserved.