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 he will undertake a review of all cases being investigated in the zone and interact with the staff. Navin 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. ED carried out raids on Janua...