Munirathnam Naidu, a city corporator and Congress candidate, and Venkatesh Gowda from the Karnataka Janata Paksha (KJP), both contesting from Rajarajeshwarinagar assembly constituency, were arrested, police said.
While Naidu was nabbed for allegedly threatening an election officer and obstructing him from performing his duty, Gowda was held in connection with the pending cases of assault and atrocity.
Further investigations into the matter are underway, they added.