He studied acting at the Film and Television institute, Adyar.
He was given his first role by director K. Balachander in the film Punnagai Mannan.
[1] Later, Sundar was cast by Kamal Haasan in the film Kadamai Kanniyam Kattupaadu and Sathyaa, produced by Raaj Kamal Films.
[2] Apart from mainstream films, Sundar played the lead role in the national award-winning film Ooruku Nooruper directed by B.
[4] After a brief hiatus, Sundar has entered into the second phase of his acting career through Nalan Kumarasamy's Kadhalum Kadanthu Pogum, starring Vijay Sethupathi and Madonna Sebastian.