SP Banswara Sudhir Joshi said the accused delivered threat letters on March 30, one slipped under a shop shutter, and another was handed to an employee at a farmhouse, claiming to be a notorious gangster. SP Banswara Sudhir Joshi said the accused delivered threat letters on March 30, one slipped under a shop shutter, and another was handed to an employee at a farmhouse, claiming to be a notorious gangster.