When it comes to guest appearances, Richa Chadha may have clinched the most unusual of the lot. The actress features in American author-entrepreneur Timothy Ferriss’s book, Tribe of Mentors. A collection of advice from professionals from different walks of life, including actors, chefs, musicians, TV show hosts. And Richa is the only Indian actor to be featured in the book that also features Hollywood stars like Ashton Kutcher, Ben Stiller, Jimmy Fallon and Larry King.