Passage: In 2001, he won the Filmfare Award for Best Actor - Telugu for the film Nuvvu Nenu, and became the youngest winner of the Filmfare best actor award after Kamal Haasan. He is the only Telugu actor to have his first four films remade into all regional languages. In 2006, he made his Tamil debut with the film Poi, directed by veteran K. Balachander. Subsequently, he starred in romantic films including Nee Sneham and Kalusukovalani. His other performances have been in the films Sreeram, Avunanna Kaadanna, Nuvvekaddunte Nenakkadunta and Jai Sriram.

Question: What was the name of his Tamil debut film?
Poi