V. Vignarajan made his directorial debut with Andhaghaaram (translated as Darkness), a Tamil-language supernatural horror thriller released in November 2020. The film, starring Arjun Das, Vinoth Kishan, and Pooja Ramachandran, was praised for its atmospheric storytelling and complex narrative structure. Produced by Priya Atlee, Sudhan Sundaram, Jayaram, and K. Poornachandra, the film was distributed by Netflix, giving Vignarajan international visibility.
Before Andhaghaaram, Vignarajan had been associated with Tamil cinema through smaller projects and collaborations. His style is noted for blending psychological depth with supernatural elements. Following the success of his debut, he has been announced as the director of an upcoming film starring Harish Kalyan, further cementing his reputation as a promising voice in contemporary Tamil cinema.