John I think a very similar book in intensity is "I Am Pilgrim" by Terry Hayes which is fiction unlike Shantaram. It is a similar length and also spell binding.
Mallikarjun shantaram is the 2nd part of the series gdr is supposed to write. there's gonna be a prequel to it and a sequel too. The next book is called 'the mountain shadow'. Its the sequel to shantaram.
Gayle Fleming He has a new book coming out in October called "The Mountain Shadow. I think it's a follow up to Shantaram.
Daniel Hartigan I would recommend The Buddha Of Suburbia by Hanif Kureishi. Although it doesn't have the exotic setting of Shantaram, and not all the adventure in the classical sense, it is a brutally ohnest semi-autobiographical novel that ponders ones morals and choices in life.
Carl Miles Avoid The Mountain Shadow. I adored Shantaram, but TMS fell far short of the mark and Roberts character, to me, was infinitely disagreeable.
Claudia The sequel "The Mountain Shadow" is supposed to come out in October. (Source: http://www.ew.com/article/2015/03/11/...). In a letter to a (n angry) reader (http://wildchild1962.hubpages.com/hub...) Roberts said he'd planned three books in total, Shantaram being the second in chronological order.
Hither Kusum I would recommend "Fine Balance" by Rohinton Mistry and "City of Joy" by Dominique Lapierre.
Øyvind Maybe it's an obvious suggestion, but I feel Shantaram is comparable to Papillon by Henri Charrière in many ways.