The CPO said the boy told him he had done so because he was scared. The CBI didn't let any member of the juvenile justice board to be present when the investigation was on. She will submit her report to the juvenile justice board. The suspect's father told TOI on Tuesday a "confession" had been extracted from his son by scaring and beating him. Juvenile Justice board members weren't always present (when the CBI was interviewing him).
Source: Times of India November 14, 2017 19:37 UTC