He has directed over 16 films in Tamil and acted in over 9 movies as the protagonist.
Initially, he worked as an assistant director to Manivannan.
His notable films include Ullathai Allitha (1996), Arunachalam (1997), Anbe Sivam (2003), Winner (2003), Giri (2004), Kalakalappu (2012), Theeya Velai Seiyyanum Kumaru (2013), Aranmanai (2014) and Kalakalappu 2 (2018).He took a short break from direction after his initial launch as an actor in 2006 with the film Thalai Nagaram which was a commercial failure.
He returned to direction with his trade mark comedy roller coaster in the movie Kalakalappu in 2012 and it went on to become a moderate success.
His successful career as a director continued with movies like Aranamanai film series (2014).
He also produced the TV series Nandini along with his wife, actress Kushboo aired on Sun TV.
He is a pioneer in television industry to produce a TV Series in 4 languages: Tamil, Telugu, Malayalam and Kannada, simultaneously.
The show has been praised and well received by audience, becoming a huge success and India's most watched television series in a matter of weeks since it first aired.
He also produced movies like Hello Naan Pei Pesuren, Muthina Kathirika and Meesaya Murukku.
Sundar C is one of the few directors who directed the two Super Stars of Tamil Cinema, Rajinikanth and Kamal Haasan in Arunachalam (1997) and Anbe Sivam (2003), respectively.