From playing intense parts to switching to comedy, Kunal Kemmu says every time he tries to feature in diverse films, it feels as if he is making his debut every second year in Bollywood. The actor started out as a child artiste in the 1990s and went on to do films such as "Hum Hain Rahi Pyar Ke", "Raja Hindustani", "Zakhm", and "Dushman". "I still feel I'm a newcomer on the basis of the responses I get. People tell me 'oh you look so young', 'oh he's comeback with a new film.' I keep feeling I constantly debut every two years," Kunal told PTI. His career witnessed a downfall after a string of flop films until Rohit Shetty's "Golmaal 3" in 2010 and Saif Ali Khan-starrer "Go Goa Gone" (2013) came his way. This constant genre-jumping, Kunal says, comes with the aim to constantly reinvent himself. The actor says both success and failure in his 15-year-long career has only made him an optimist. In his latest multistarrer "Kalank", which also featured Alia Bhatt, Varun Dhawan, etc Kunal was the one to steal the thunder as an antagonist, Abdul. Kunal, 35, is "overwhelmed" with the response coming his way for "Kalank" . The actor will next be seen in "Malang", which reunites him with his "Kalyug" director Mohit Suri and a long-awaited sequel to the zombie comedy "Go Goa Gone".