After graduating from Whistling woods international and Griffith University, he assisted cinematographer Santosh Sivan in the films Urumi and Thuppakki. His first debut feature filmDemonte Colony went on to be a huge commercial and critical success. An article in Times of India about his work noted, "The film takes place over the course of two days and the entire second half takes place inside a single room but with the help of his cinematographer, Aravinnd Singh, Ajay manages to keep the film visually appealing — the orange glow of a streetlight in the background provides a stark contrast to the saturated tone that is used for the room and the interesting angles in which the cinematographer frames the action adds to the thrill". Meanwhile, Sify cites "cinematographer Aravinnd Singh has done a phenomenal job as he conveys all the thrill moments through his lighting and angles. The aerial shot showcasing the housing board colony and the vivid lighting used in the SINGLE ROOM of the protagonists' house are absolutely brilliant". His second film, Aarathu Sinam was a Tamil remake of Jeethu Joseph's Malayalam filmMemories. It was directed by Arivazhagan Venkatachalam and starred Arulnidhi and Aishwarya Rajesh. Upon release the movie was widely appreciated with Hindustan Times quoting "Aarathu Sinam is a taut thriller like the original, Memories. It sails through a thrilling terrain to a wow climax." Behindwoods - "Aravinnd Singh's cinematography is fast and elegant. His navigation shot of Madurai in a sequence towards the end of the movie, the long encounter sequence in a construction sitein the beginning and certain establishment shots are the work of a creatively superior technician." IB Times - "Technically, cinematography department is top notch." Rediff - "The film is, however, technically sound with some intriguing camera angles by cinematographer Aravind Singh." DNA - "Most of the shots by the cinematographer Aravind Singh are visually quite appealing too." His recent releases Natpe Thunai turned out to be highly successful at the box office and K-13 commercially successful as well as critically acclaimed. His other upcoming Tamil films include titled Shaitan Ka Bachcha., Cadaver, a forensic thriller starring Amala Paul in the lead and 'Diary' starring Arulnithi written and Directed by Innasi has previously assisted director Ajay Gnanamuthu Aravinnd Singh turned producer for Arulnithi's untitled film under his production house 'MNM films', this untitled project is directed by popular YouTube channel Eruma Saani fame Vijay Kumar Rajendran in Ron Ethan Yohann's music.
