New Delhi: In a significant development, a Kolkata court on Tuesday remanded Sandip Ghosh, the former principal of RG Kar Medical College and Hospital, along with three others, to Central Bureau of Investigation (CBI) custody for eight days. The arrests are connected to alleged financial irregularities at the state-run institution. The CBI had initially requested a 10-day custody, citing the need to investigate what they described as a large nexus involved in the corruption case.We have just arrested four people. There is a large nexus that needs to be exposed, and hence we are asking for their interrogation. We need their custody to unearth the entire nexus, the CBI informed the Alipore Judges Court. The four individuals arrested include Ghosh, his security guard, and two vendors who supplied materials to the hospital. This arrest follows the shocking case of a 31-year-old trainee doctor who was allegedly raped and murdered at the hospital last month, adding another layer of complexity to the ongoing investigations.Ghosh over the report Ghosh has been named in a First Information Report (FIR) under Section 120B of the Indian Penal Code (criminal conspiracy) and Section 420 (cheating and dishonesty), alongside charges under the Prevention of Corruption Act, 1988. The investigation intensified after Dr. Akhtar Ali, a former deputy superintendent at the hospital, renewed allegations of financial misconduct against Ghosh.The Calcutta High Court had earlier ordered the transfer of the probe from a state-constituted Special Investigation Team (SIT) to the CBI, following a petition by Dr. Ali. His plea also requested an investigation by the Enforcement Directorate (ED) into various financial misdeeds, including illegal sales of unclaimed corpses and the trafficking of biomedical waste.The CBI has already conducted extensive searches at Ghoshs residence and subjected him to polygraph tests as part of the ongoing probe. Additionally, cases have been registered against several entities, including M/s Ma Tara Traders, M/s Eshan Café, and M/s Khama Louha, in connection with the corruption scandal.