Sanchita Chatterjee, BS News Agency: The Enforcement Directorate (ED) arrested Kolkata Police Deputy Commissioner (DCP) Shantanu Sinha Biswas after over 10 hours of interrogation at the agency's CGO Complex office in Salt Lake. The Syndicate: The case centers on an organized criminal syndicate led by history-sheeter Biswajit Poddar, alias "Sona Pappu", who faces extensive charges for illegal land grabbing, real estate extortion rackets, and Arms Act violations in South Kolkata.The Money Trail: ED investigators discovered suspicious financial transactions in Sona Pappu's bank accounts linked directly to Biswas. The agency is also tracking a linked money laundering network involving businessman Joy Kamdar (MD of Sun Enterprise/Supreme Credit Corporation Ltd), who was previously arrested in this case.Evading Interrogation: Biswas had repeatedly skipped five separate ED summons. This evasion prompted the agency to issue a Lookout Circular (LOC) across Indian airports and border checkpoints to prevent him from fleeing the country. He finally appeared at the ED office on May 14 accompanied by lawyers, where he was detained for being "non-cooperative" and "suppressing key facts".Broader Probe Scope: Beyond the Merlin Group land-grabbing probe, central investigators are expanding their scrutiny into Biswas's alleged involvement in an illegal sand smuggling case and a previous illegal arms recovery case. April 2026 Raids: The ED previously carried out a 20-hour raid at Biswas’s primary residence on Fern Road in Ballygunge, as well as a nearby building where he holds ownership of five flats.Family Summons: The agency had also issued summons to Biswas's two sons, Sayantan and Manish, though neither appeared before the investigators. Biswas, a high-profile officer who previously served as the officer-in-charge of the sensitive Kalighat police station, is scheduled to be produced before a special PMLA court on Friday, May 15, 2026, for custodial remand. If you would like to follow the legal updates of this case, I can check for information on court remand rulings, details regarding the attached assets, or the political reactions following the arrest.