In my family, as in most middle-class Indian families I knew when I was growing up, science and mathematics were held in awe.

When I was growing up in the south Indian city of Madras, there were only two political parties that mattered; one was run by a former matinee idol, and the other was run by his former screenwriter.

When I was writing 'The White Tiger' I lived in a building pretty much exactly like the one I described in this novel, and the people in the book are the people I lived with back then. So I didn't have to do much research to find them.

Indians mock their corrupt politicians relentlessly, but they regard their honest politicians with silent suspicion. The first thing they do when they hear of a supposedly 'clean' politician is to grin. It is a cliche that honest politicians in India tend to have dishonest sons, who collect money from people seeking an audience with Dad.