Deputy Commissioner Siddharth Singh was on way to Majdia town from the district headquarters in Barpeta when the incident took place, the sources said.
The DC stopped his convoy after noticing some people selling petrol near the road and told them to stop the illegal activity. Soon a group of locals gathered at the spot and a scuffle ensued, they said.
Singh suffered minor injuries during the incident while one of his bodyguards was also injured, sources said.
One person has been arrested in this connection, they said.