New Delhi, April 22 -- It isn't just the political parties that have been busy in West Bengal over the past month, in the run-up to the assembly elections in the state (the first phase of the two-phase election is on Thursday); federal investigating agency Enforcement Directorate (ED) has been in the thick of action too, conducting high-profile raids, carrying out arrests, attaching properties, and filing charge sheets. In the past month alone, according to details compiled by HT, the agency has mounted over a dozen operations, with officials in ED terming the crackdown crucial to unearth financial irregularities. An ED officer, who didn't want to be named, said "all of its action is in ongoing probes and has been taken by following due pro...