Which book written by an Indian born Australian adopted author was the film "Lion" based on? 
Lion (2016 film): Lion is a 2016 biographical film directed by Garth Davis (in his feature debut) and written by Luke Davies, based on the non-fiction book "A Long Way Home" by Saroo Brierley with Larry Buttrose. Saroo Brierley: Saroo Brierley (born 1981) is an Indian-born Australian businessman who, at age five, was accidentally separated from his biological mother.
i don't know