Kambi — Kochupusthakam
I should consider the director's style. Sundar C. is known for his slapstick comedy and family-oriented films. The movie might have a comedic tone, possibly some slapstick elements, and maybe musical numbers typical of 1990s Tamil cinema. The performances of Kamal Haasan and Madhavan are key here. Kamal is usually versatile, so his dual role could be well-executed, and Madhivan's role might be a supporting one that adds comic relief.