"I found Bombay and opium, the drug and the city, the city of opium and the drug Bombay" - Jeet Thayil, Narcopolis
I haven't spoken about Bombay much because it means too much to me. It's the city that I love and hate at the same time.
This quote by Jeet Thayil in Narcopolis is one that describes the relationship perfectly. Also, if you're looking for a book on Bombay that's not Shantaram - this is a great one.