...[O]ver 150,000 brick production units in the country…employ an estimated 10 million workers, churning out the building blocks of the new offices and apartments, factories and shopping malls…It's modern-day slavery,” says Andrew Brady, of Union Solidarity International (USI), a UK-based NGO that has been campaigning to improve the brick labourers' conditions over the last two years… horrific abuses of minimum wage rates and health and safety regulations, and it's often bonded labour, so they can't escape…The Blood Bricks campaign, which launches next week, is the latest chapter in USI's work to force international attention on the issue. In partnership with Indian human rights group, Prayas, they have been working to organise brick kiln workers into unions.