PATNA, Nov. 11 -- The Economic Offences Unit (EOU) arrested a conman for impersonating sleuths of the Vigilance Investigation Bureau (VIB) and threatening to implicate government officials in disproportionate assets cases to extort money from them. The arrested conman has been identified as Nihal Kumar Rai, 20, a resident of Pachfera in the Mirganj police station area of Gopalganj district. He allegedly called government officials, threatened to initiate action against them over alleged possession of assets disproportionate to their known sources of income and demanded large sums of money to settle the matter. He also confessed to extorting money from several officials and senior officers in this manner, officials said. According to the EOU, the District Flood Control Administration in Katihar lodged a complaint on November 9 through its executive engineer, Kripanath Chandra Biswas. He stated that on November 6, a person called him on his mobile phone, claiming to be a VIB official. The caller told him that a complaint had been filed against him alleging possession of disproportionate assets (DA). He warned Biswas that if he wanted to avoid action by the VIB, he should come to Patna with Rs.2 lakh. The conman assured him that upon payment, he would provide a copy of the complaint and settle the matter. He also threatened that a raid could be conducted at any time if Biswas failed to come to Patna. The conman called him again on November 7 and summoned him to a location near Vikas Bhavan on November 9, asking him to bring the money. Subsequently, the executive engineer approached the EOU office and lodged a complaint. Based on his complaint, an investigation was initiated under Economic Offences Police Station case number 32/26. The police arrested Nihal Kumar Rai on the same day on the basis of technical evidence....