They were arrested for indulging in violence as clashes broke out during rallies taken out by their respective parties last night, police said.
Stray incidents of violence were reported in Kuttiyadi and Nadapuram areas in which a number of houses were attacked, police said, adding, the situation was now under control.
Only minor injuries were reported.
Meanwhile, the district administration has clamped prohibitory orders for a week in Koilandy, Vadakara, Chombala, Edathur and Valayam.