It looks like AR Rahman has started composing tunes for Mani Ratnam's upcoming film starring Vijay Sethupathi, Fahadh Faasil, Jyotika and Aishwarya Rajesh. The music director posted a couple of pictures from Goa on Instagram - one of which features a harmonium. Our sources confirm that both Mani Ratnam and Rahman were in Goa to compose songs for the project. We also hear that the team will likely begin shooting for the film from January.