India, Oct. 2 -- With dialogues like "Yeh bhi toh party hai - tum, main aur do cup chai," and a host of lovable characters, Wake Up Sid (2009) was a coming-of-age film that defined a generation. As the Ayan Mukerji directorial, starring Ranbir Kapoor and Konkona Sensharma turns 15 this year, singer-composer Shankar Mahadevan and actor Namit Das chat with us about their favourite memories and what drew them to the film....