3. Dinesh Sarin, the Wood Shack Tinker

Inside a roughly painted wooden house Dinesh and his employees mend the heaps of damaged oil cans in multiple batches of processes. “We process over 400 of these a day. We get cans in a terrible state, beyond repair for most, and we clean them up and sell them back to the oil companies and direct to local consumers. We save them a fortune,” said Dinesh who lives in a singles room with his wife and five kids. Working more than eighteen hours a day Dinesh has dreams of any common man. “I'm saving up to buy a Maruti van so I can take my family to Goa when the weather gets too hot,” Dinesh told The Guardian.

Next: How Dharavi is saving the earth