SHILLONG: Unknown miscreants on Thursday night robbed a truck driver at Shillong Bye pass. The incident happened between 12 to 1 pm when five unidentified miscreants in an unknown local taxi robbed Arjun Sahani (43), driver of truck (AS-01-DD-9115) of Rs. 13,000 at Shillong By-pass Diengpasoh (EKH).