M.N. Gnanasekaran began his career in the film industry when he graduated in cinematography from the Film and Television Institution. His very first feature film, Aval Appadithaan, won state award. On completing more films, he became much respected teacher at his alma mater. Cinematographers like Rajiv Menon and Alphonse Roy learnt fundamentals of their craft under his guidance and continue to value his methods and insights. He has taken charge as the Dean of Mindscreen Film Institute.
Gnanasekaran is highly knowledgeable in the difficult field of cinematography theory and the various technical aspects associated with it. In terms of challenging practice, he has six feature films, several documentaries, and two decades of sustained work in professional scientific photography, to his credit.
Cinematography is a both science and art, with a human touch.