New Delhi, Jan 14 (UNI) The Enforcement Directorate (ED), Lucknow Zonal Office, on Wednesday filed a supplementary chargesheet against 18 accused persons, including the alleged main accused and mastermind Rajiv Nayan Mishra, before the Special Court under the Prevention of Money Laundering Act (PMLA) in Lucknow. The case pertains to the Uttar Pradesh Police Constable Recruitment Exam-2023 paper leak. The ED initiated its money laundering investigation based on an initial FIR registered by the Uttar Pradesh Special Task Force (UPSTF).