A 15-year-old boy, who is the main accused, had first uploaded the pirated CD onto a site -- Kickass in which pirated versions are uploaded, from where several other hackers downloaded the movie, Anti Piracy Cell official told PTI.
The movie was uploaded just four days after its release, the official said.
An eleventh standard student and a college going teen had uploaded cut and full portions of the movie.
Cases have been registered against the three for cheating, under the IT Act and Copyright Act.
The film's producer Anwar Rasheed, who had filed online complaint, had appeared before the investigating officials yesterday and his statements were recorded.
The hugely popular "Premam", helmed by Alphonse Puthren, had suffered a setback with the pirated version being circulated on internet, hitting its revenues.