Tamil writer Nellai Kannan was arrested here on Wednesday, days after an FIR was registered against him for his speech during an anti-Citizenship Amendment Act (CAA) protest.
The Tirunelveli Police had registered the FIR against the writer for the speech delivered at a meeting, which was called by the Social Democratic Party of India on December 29 last year.
Kannan had reportedly used harsh language against Prime Minister Narendra Modi and Home Minister Amit Shah during the speech.
The police have booked him on the basis of multiple complaints filed by BJP leaders.
Kannan has been booked under Sections 504, 505(1) and 505(2) of the Indian Penal Code.