Kolkata, Jan. 11 -- The Kolkata Police has collected CCTV footage from Loudon Mansion, where an Enforcement Directorate (ED) team searched the residence of Indian Political Action Committee (I-PAC) director Pratik Jain on Thursday, triggering a pitched political battle with the ruling Trinamool Congress. A senior Kolkata Police officer said the building's digital video recorder (DVR) had been collected and sent to the forensic laboratory. The police are also preparing a list of people whose statements will be recorded. "The DVR has been secured. The building's facility manager has been asked to submit the names of employees who were on duty on January 8. Statements of Jain and his family members would also be recorded," an official said. P2...