"During the inspection by various squads, 22,204 vehicles have been checked and a sum of Rs 64,18,500 has been seized so far along with 293 vehicles," he said in a statement.
A total of 464 persons have been arrested under preventive sections, around 1,088 arms deposited and 369 non-bailable warrants against accused persons have been executed, he said.
The campaign for the bypoll came to an end today.
AIADMK, BJP, and DMK are among the 29 contestants in the fray.