Mumbai, Nov 27 (ANI): Naseeruddin Shah, the stalwart who needs no introduction has penned a memoir narrating his life as an actor. Titled 'And Then One Day: A Memoir' , the book is said to be a candid recount of almost four decades of Naseeruddin Shah's life was launched by him in Mumbai. Speaking on the occasion Naseeruddin recalled the time he started writing this book. Though the actor is happy that it is being appreciated though he says it may ruffle a few feathers in the film industry. This memoir sums up his life beautifully in about 318 pages till he married Ratna Pathak Shah when he was 32 years of age.