Burdwan, Jan. 16 :    Burdwan, Jan. 16:  The Durgapur police today arrested a person impersonating as a CBI officer and demanding hush-money from big businessmen. According to the police, Debasish Mukherjee, a 30-year-old youth, had checked in at a posh hotel in Durgapur two days back. He had identified himself as a 'senior CBI official'. He had been contacting big businessmen and asking them to meet him at the hotel to avoid raids on their companies. Mukherjee was to get Rs 20,000 from Paresh Banerjee, a local businessman and CPM councillor of Sonamukhi Municipality of Bankura district. Mukherjee told him that he had 'gathered sufficient document to nail him'. The meeting was scheduled for last night. A suspicious Banerjee got in touch with Durgapur police. The police laid a trap. As Banerjee arrived at the hotel at the scheduled time and Mukherjee was about to take the money from him, plainclothesmen surrounded him. Mukherjee immediately flashed an identity card and claimed that he was a senior CBI official. He even threatened the policemen of 'serious consequences'. But they took him from the hotel to Durgapur police station. Mukherjee was later produced before a court here which remanded him in seven days' police custody.