New Delhi, Jan. 22 -- Enforcement Directorate (ED) director Rahul Navin is likely to visit Kolkata on Thursday to review the working of its eastern region office, days after a dramatic raid at I-PAC's office by the federal agency turned into a legal battle, officials said on Wednesday. According to officials, the ED director's visit to its Kolkata branch is a routine one, in which it will undertake a review of all cases being investigated in the zone and interact with the staff. He is also expected to take feedback from the officers on the overall working conditions and security arrangements for the personnel and the office premises, officials said, adding that cases pending in courts will also be discussed. The federal agency carried out raids on January 8 on the political consultancy firm I-PAC, which also advises the ruling Trinamool Congress (TMC) in West Bengal. However, it claimed that the action was obstructed by West Bengal chief minister Mamata Banerjee and state's top police officers, who took away the evidence including electronic devices seized by it. The Supreme Court is currently hearing the matter where ED has sought action against the chief minister, including a probe by the Central Bureau of Investigation (CBI). The TMC has alleged that ED was attempting to take away its election-strategy-related documents from I-PAC premises just before the upcoming assembly polls slated to be held in April-May this year. Earlier, the ED director had visited the Kolkata office immediately after the enforcement agency's search team was attacked in Sandeshkhali in South 24 Parganas district in January 2024....