Over 11,000 persons were arrested in different parts of the state for trying to stage protests without permission.
Protestors proclaiming allegiance to various groups from either of the religious communities were arrested from different parts of the state, including in Chennai, Coimbatore and Tirupur, police said.
Hindu groups demanded handing over the land at Ayodhya to construct Ram Temple there while Muslims raised slogans against the demolition of the mosque.
Kar sevaks had demolished the mosque on December 6, 1991.
Baggage screening at railway stations and bus stands and vehicle checking were intensified to avert any untoward incident, police said.