Why some factory owners are celebrating India's child labour bill

It's mid-morning and the local school in the large Delhi shantytown that I'm visiting, on the edge of India's vast capital, is teeming with children. The narrow lanes ring out with their little voices reciting the alphabet at the top of their lungs.
But just next to the school, that reassuring sound and sight is replaced with something else.

Doors lead off the narrow lane on which it's located to small homes.

From inside one of them, you can see groups of women squatting...