He was keen on casting actress Sriya Reddy in a villainous role and was only successful in signing her on after several rounds of negotiation, with the casting subsequently winning acclaim post-release. The film opened in August 2006 to positive reviews, with a critic from The Hindu adding "Gopi's packaging and treatment make Thimiru engaging". Thimiru became a very successful venture at the box office and Tarun Gopi immediately began pre-production work on another script featuring Madhavan, but later discontinued work the project.
He was resolute in casting actress Sriya Reddy in an antagonistic role and only succeeded in convincing her after multiple rounds of talks, with the casting ultimately earning widespread acclaim following its release. The film debuted in August 2006 to positive reviews, with a critic from The Hindu commending "Gopi's presentation and approach that makes Thimiru compelling". Thimiru turned out to be a very profitable venture at the box office and Tarun Gopi immediately started pre-production work on another script featuring Madhavan, but later abandoned the project.