"We are paying full attention to the security of the chief minister and other aspects. The person who threatened the CM yesterday has been arrested, " he said, adding that the CM's security is very important. Though Fadnavis didn't share details regarding the arrested person, Pune Police had registered a non-cognisable (NC) offence against a man who had called up the police control room claiming a "plot" to kill CM Shinde at a hotel in Lonavala in Pune district.