"I’ve spent a lot of time in London over the last few years and I liked the idea of the Mughal emperor Babur meeting with modern-day disaffected youth and talking to them about their actions. He was a sharp literary critic who could be very sweeping and cruel about poetry if he thought it was bad poetry, and he said some fantastic things that I quoted word for word in the opera. I read the Baburnama – the memoirs of Babur – and quoted lines from it. “Writing badly will make you ill.” What a beautiful thing to say. I read that book and I thought, how dramatic! If he had been a figure in western history it would have been an opera. War, murder, love, tragedy, poetry. It always jumped out at me as something worth doing."

“Our choice was not easy and we had intense deliberations about themes, styles and genre of novels.”

“He read because it gave him instant gratification in a way nothing else did, and, as was the case with all addicts, gratification was the important thing. He liked history, travel, anthropology, cookbooks ; he liked books with specialized information.”

“My life hadn’t fallen apart. I kept my jobs going, I had girlfriends, I had money, I had a house, I had a car, I had all those things. But I got Hepatitis C from injecting government morphine. I started injecting in 1982, but it took 25 years for the symptoms to show. That was a complete wake-up call. As soon as I found out, I quit everything, including my job in New York, and came to India to be a writer. I started working on the book, and lived very cleanly. I even quit drinking for nine years. It wasn’t easy to do. But just knowing that my time was limited was enough. Hepatitis C will eventually turn into liver cancer. Everybody is dying, by the way. The difference is that I know it, and you don’t. We live in that kind of world. And knowing it has focused me and made me do things that I would probably have put off for another ten years.”

“A lot of people misspelt the title of the book and called it Necropolis, but I’m fine with that, because the title is a play on that and it is a city of the dead. Narcopolis is a necropolis. Bombay disappears and a lot of the characters die with it. Throughout the book, opium disappears and heroin arrives and the last few chapters point at the future, to what Bombay will be. You can make an accurate educated guess as to what it will be in the future.”

“He leaves the reader with a realization. The line between those born with choices and those not so lucky is very thin. The side of the divide you’re born on is purely random.”

“Opium use is a quick way of showing a person’s character. Within months some people would be stealing from family and friends, but there were people who never did that kind of thing. I used my salary to finance my habit.”