Shantaram. Aussie breaks out of prison and ends up in Bombay.
It's written as a novel, not an autobiography... but if you look at his life, that's essentially what it is.

Link to book:
http://www.amazon.com/Shantaram-Nove.../dp/0312330537

Watered down life story of the author:
Gregory David Roberts was born in Melbourne, Australia. A gifted writer and student, he became addicted to heroin when his marriage collapsed and he lost the custody of his daughter. When he committed a series of robberies with an imitation pistol, he was described as the Gentleman Bandit. Sentenced to nineteen years in prison, he escaped and journeyed to New Zealand, Asia, Africa, and Europe. For ten of those fugitive years he lived in Bombay-where he established a free medical clinic for slum-dwellers, and worked as a counterfeiter, smuggler, gunrunner, and street soldier for a branch of the Bombay mafia. Recaptured in Germany, he served out his sentence there and in Australian prisons. Upon his release, he established a successful multimedia company, and since the international publication of Shantaram, he is a full-time writer, at home in several countries.
I usually don't enjoy books that aren't military or SHTF themed, but I'm thoroughly enjoying this one.