A staff of a toll plaza on a national expressway in Uttar Pradesh's Gautam Buddh Nagar was allegedly thrashed by over half-a-dozen men peeved over being asked to pay the tax, police said on Wednesday. An FIR has been lodged into the incident that took place at the toll plaza on the Eastern Peripheral Expressway in Greater Noida's Dadri area, but no arrest has been made yet, they said.