Kolkata: Three men, posing as senior CBI officers, reportedly tried to get confidential data of state school recruitment candidates from the Staff Selection Commission’s (SSC) eastern region office at Nizam Palace. The trio was arrested.The three reportedly arrived at Nizam Palace on AJC Bose Road around 2.30 pm on Monday in an SUV with a ‘Govt of India’ signage on it. Two of the accused, Biprarshi Bose and Subham Sagar Tanti, climbed up to the eighth floor of 1st MSO Building, where the SSC-ER office is located. Police said Bose called himself a CBI deputy superintendent of police and Tanti a CBI sub-inspector and showed fake CBI ID cards and forged SSC-related documents. The two allegedly claimed they needed candidate information for an ongoing CBI investigation.But SSC officials became suspicious and started questioning them. When the two failed to produce valid authorisation, staff and security personnel detained them. During questioning, they allegedly admitted that the CBI ID cards and SSC documents were fake.Based on a complaint by Surajit Basak, assistant director of SSC Eastern Region, an FUR was registered at the Bhowanipore Police Station for forgery, cheating by impersonation and criminal conspiracy under BNS. Police arrested Bose and Tanti at the SSC office and seized the fake identity cards, forged documents and other items. During interrogation, Bose disclosed information that led police to seize their SUV and arrest a third accused, Pallab Mondal.Police are examining if they were working for someone else and what their motive was.