The band Thaikkudam Bridge from kerala has already asserted that the song Varaha Roopam was lifted verbatim from their song Navarasam. The band filed a court complaint against the creators of Kantara, claiming that playing Varaha Roopam in the movie violated their copyright for the song. They also requested a restraining order to prevent this from happening (both theatrical and OTT, TVs).
It should be mentioned that the song Varaha Roopam was previously taken from amazon Prime Video, which is streaming Kantara on its platform. Another track has been added in place of the Varaha Roopam song. This decision disappointed a number of admirers.