A convoy of Karnataka Home Minister Basavaraj Bommai crossed a police checkpoint despite a cop requesting it to stop.
Mr Bommai was in the car when the incident took place in the state's Mandya district on Wednesday.
The video footage of the incident shows a series of cars crossing the check-point barricade even when a police officer tries to stop them.
"Election norms and rules are same and applicable to everybody including the Chief Minister or the Home Minister. If at all the Home Minister doesn't stop the vehicle when the police officials ask to stop the vehicle, it is an offence and he should be booked for not stopping the vehicle per the electoral norms," Congress spokesperson VS Ugrappa said.
The state will be going for by-polls in 15 assembly constituencies, including KR Pete in Mandya district.