GV Prakash Kumar has been officially named the music composer for the much-anticipated film 'Pocket Novel'. Taking over from Ilaiyaraaja, who was previously linked to the film, this change has. Music composer GV Prakash Kumar has reportedly replaced veteran musician Ilaiyaraaja for director Thiagarajan Kumararaja’s upcoming film Pocket Novel, featuring Vijay Sethupathi, Raj B. GV Prakash Kumar has been officially confirmed as the composer for Thiagarajan Kumararaja's Pocket Novel.