Bravo has announced an replacement for outgoing Top Chef host Katie Lee Joel who " departed " the culinary reality series last month, locking 36- year-old Indian supermodel, author, and actress Padma Lakshmi to step into Joel's designer shoes. Known as the world's first Indian supermodel, Padma Lakshmi joins Bravo's Top Chef at the start of the second season, where she'll introduce the challenges to the contestants and join Tom Colicchio and Gail Simmons at the judges' table each episode. Lakshmi is no stranger to the culinary world, having hosted cooking series Padma's Passport and documentary series Planet Food on Food Network. For the latter, Lakshmi traveled the world on an ongoing quest for exotic cuisine. She is currently writing her second cookbook, which is due to be published next spring. Her first cookbook, "Easy Exotic," netted her a prize at the International Versailles Event for the best cookbook by a first time author. Laks