The Delhi Police was today sent into a tizzy after it received a call that the Delhi High Court will be blown up. The call was received by the control room around 11 am from a man who claimed to have planted bombs inside the court complex, police said. The bomb squad was alerted and the court scanned. However, the call was found to be a hoax, they said. The police are on the lookout for the caller who has since switched off his phone.