Before starting his television acting career Karan did many modeling assignments, ramp shows, advertisements and even hosted a radio show. Later he entered the Gladrags Mega Model Manhunt Contest in 2004 and ended up winning the award for the Most Popular Model. Through a nationwide talent hunt contest he, along with five others, got selected to play leads in an MTV show Kitni Mast Hai Zindagi, fo
...llowed by Princess Dollie Aur Uska Magic Bag. Subsequently, he acted in Solhah Singaarr on Sahara One, as well as some short stints on C.I.D. Karan rose to fame through the role of Dr. Armaan Mallik in Dill Mill Gaye, which became widely popular and gained him a massive fanbase. Along with Dill Mill Gayye, he anchored the STAR One reality television show Zara Nachke Dikha throughout its first season. He was the second runner-up in the dance reality show Jhalak Dikhhla Jaa in Season 3. In 2009, he co-hosted the music show Idea Rocks India on Colors TV. In 2010, he participated as a contestant in Khatron Ke Khiladi in Season 3. In 2011 he hosted the travelling reality show Perfect Couple on [[Channel [V]]]. Also made a special guest appearance for about a month of the [[Channel [V]]] series Dil Dosti Dance as professor Karan Mallik. He also starred in a telefilm in the Star Plus telefilm series Teri Meri Love Stories in August, 2012. Soon, Karan will be seen in a new Zee TV series by Four Lions Productions titled Qubool Hai. Karan's debut Bollywood film Lorie/The Loving Doll is also under post production and will be releasing soon.