Ananthu was sub-dialogue writer with Chitralaya Gopu for the films Anubhavam Pudhumai and Galatta Kalyanam directed by C. V. Rajendran.
[8] A critic noted "with an eye for realism and a talent for profound dialogue, Ananthu makes this a memorable entry into the annals of parallel cinema.
[11] In the early 1970s, Kamal Haasan had become jaded and suicidal with the monotonous, low-key roles that he was receiving from Tamil cinema.
[12] During the period, Ananthu continued to nurture Kamal Haasan's talent by evaluating his on-screen performances and by introducing him to world cinema.
[16] An official portrait of Ananthu was inaugurated in 2019 at Kamal Haasan's offices as a part of celebrations marking the actor's 60th year in the film industry.