He prepared for his first role by paying close attention to Pandiraj's instructions and visiting Marina Beach extensively to study the surroundings, while revealing that he hoped that his natural talent of humour would come through on-screen. ĭirector Pandiraj approached him to play the lead role in his film Marina, and Sivakarthikeyan signed the project. The makers of Aegan noticed Sivakarthikeyan and offered him a supporting role, but his portions didn't make the final cut. He appeared in short films including his friend Atlee's Mugapputhagam, Identity, Kurahl 786 and 360°.
Despite initial reluctance to participate, he won the show. He started his career as a mimicry artist. Between his studies he took three months break and during this period his friends convinced him to go for auditions of Kalakka Povathu Yaaru, a reality show for comedy aired on Star Vijay. During college, Sivakarthikeyan took part in various cultural events and performed mimicry and stand-up comedy on stage.