Mehta: this goes in a sealed cover to two separate printers. They are identified printers with CCTV cameras and surveillance of CISF. The person goes with the box with some digital key. The person does not know the answer of the key and how to open the box. When he reaches the printer would personally call the Director General that your man has reached and the Director General would talk to the person. Then the Director General would give the code to open it.