Delhi Police say a high-tech exam cheating racket used button cameras, concealed earbuds and ChatGPT to relay answers to candidates. The network came to light during a May 26 recruitment examination for lower division clerks at Central Sanskrit University, where 256 candidates were competing for six posts. Two suspects were caught at the centre, leading investigators to a wider operation. Police are examining how electronic devices and outside handlers were used to transmit questions and answers.