On the way to see Slumdog Millionaire in Calcutta, I had my cabdriver pass through the slum district of Tangra. I lived there more than 35 years ago, when I was in my late teens, but the place has barely changed. The cab threaded a maze of narrow lanes between shacks built from black plastic and corrugated metal. Scrawny men sat outside, chewing tobacco and spitting into the dirt. Naked children defecated in the open, and women lined up at the public taps to fetch water in battered plastic jerry cans. Everything smelled of garbage and human waste. I noticed only one difference from the 1960s: a few huts had colour TVs.


