Rajya Sabha MP Natu Thakor's son Baldev, along with his aides, had gone to lift sand from the banks of the river in Sangpur village, they said.
Police said some villagers objected to this which led to argument.
Some vehicles were reportedly damaged following which Baldev Thakor registered a complaint at Vijapur police station against the villagers, they said.
The villagers also lodged a complaint late night against Baldev, police said, adding further investigations are on.
