S. Tirru, also known as S. Thirunavukarasu, is an acclaimed Indian cinematographer renowned for his work across Tamil, Malayalam, Telugu, and Hindi cinema. Starting his career in the early 1990s as an assistant to legendary cinematographer P. C. Sreeram, Tirru quickly gained recognition for his distinctive visual style and technical finesse. He made a significant mark with films like Hey Ram (2000), Kanchivaram (2008), and the science fiction thriller 24 (2016), which won him the National Film Award for Best Cinematography. Known for his innovative camera techniques and dynamic lighting, Tirru has worked on major projects including Chachi 420, Bhool Bhulaiyaa, Krrish 3, Fanney Khan, Bharath Ane Nenu, Mercury, and Jigarthanda DoubleX. He frequently collaborates with actors and filmmakers like Kamal Haasan, Shankar, and Nagraj Manjule, and has earned accolades including Filmfare Awards and Kerala Film Critics recognition. As of 2025, Tirru is involved in high-profile productions such as Hera Pheri 3 and Sikandar, continuing to be one of Indian cinema's most respected visual storytellers.