The Bharatiya Janata Party has demanded ban on Punjabi film 'Kaum Ke Heere', which is based on the assassins of former Prime Minister Indira Gandhi.
The groups clashed over the installation of a board and renaming of a chowk (intersection) in Phagwara, police said.
Pressures in the BJP-Akali Dal alliance have created grounds for a rise in extremism.