Kolkata: The Enforcement Directorate (ED) on Friday conducted raids and search operations at nine premises across Kolkata and Murshidabad as part of its money laundering probe linked to former Kolkata Police DCP Shantanu Sinha Biswas and an alleged criminal Biswajit Poddar alias Sona Pappu.

"ED is conducting searches at nine premises linked to the case of Sona Pappu and Santanu Sinha Biswas in Kolkata and Murshidabad. The premises covered include those of Md Ali alias Max Raju, Saurav Adhikari, nephew of Santanu Sinha Biswas, and the Murshidabad premises of Santanu Sinha Biswas," the ED said. "The searches are being conducted pursuant to findings unearthed during the custodial interrogation of the accused and other persons," the agency added.

Santanu and Pappu are currently in ED custody following their recent arrests by the central investigating agency. Apart from conducting raids at nine locations in Kolkata, ED officials also searched a mansion owned by Santanu in Kandi, Murshidabad district. His sister, Gauri Biswas, vice-chairperson of the Trinamool Congress-run Kandi Municipality, reportedly used to reside at the property.

Raids were also conducted at the residence of a businessman in Chakraberia area of Bhawanipur in South Kolkata.