The incident took place last evening when retired ADG Pyarelal and his son were on their way to Lucknow from Bhavvapur village, police said. Station House Officer Ishtiyak Ahmad misbehaved with them over parking of vehicle.
Ahmad also took the retired ADG and his son forcefully to the police station, they said.
When Superintendent of Police Deepak Kumar came to know about the episode he sent the SHO to Police lines and ordered a probe into the incident by ASP (South) Jagdeep Singh and sub divisional magistrate Misrikh Sarvesh Gupta.