IPC Sections (1) (b) and 506 against unknown caller at BKC Police Station based on school’s complaint The case was registered under. the police has started to investigate. Meanwhile, the Mumbai Police said that they have traced the caller and will soon arrest the accused. In October last year, a threat call was received at HN Reliance Foundation Hospital, during which the unknown caller threatened to blow up the hospital and kill the Ambani family. The caller called the school’s landline again and this time said he did so to get caught by the police.