The versatile Bollywood actress Vidya Balan was clicked as she launched the music of her upcoming film Kahaani at the Kala Ghoda Festival.At the event, Vidya Balan made an in-character appearance as the pregnant lady! She said: "I have come here with a very special film - Kahaani, where I play a six-months-pregnant woman who comes down from London in search of her missing husband, to Kolkata.For regular updates on the latest happenings in Bollywood kindly subscribe www.youtube.com/the bollywoodshow