The DMK workers were arrested on the orders of the Election Officer after they were allegedly caught giving money to voters at Raghavendrapuram, where the bypolls are scheduled to be held on February 13, police said.
An amount of Rs 52,000 was also seized from them, they said.
The election officer rushed to the spot after the locals informed him about distribution of money and ordered their arrest, police said.
Meanwhile, three DMK workers were today injured in a clash with AIADMK party workers over alleged distribution of money in the same area, police said.