In Kolkata, the CID is interrogating the former West Bengal Minister Susanta Ghosh on charges of recovery of human skeleton near his ancestral house in West Midinapur district. The district court on Thursday remanded him for another four days CID custody for further interrogation. He was hospitalised during his stay at CID custody and released yesterday. CID officials raided the house of Ghosh and recovered some cartridges and spy camera. Meanwhile, the CID also arrested one person last night in connection with the case. He will be produced in court Thursday afternoon.