In India, construction is one of the fastest growing sectors engaging a large number of migrant workers from across the country. With little knowledge about HIV, and culturally and socially isolated in India’s big cities, migrant workers are especially vulnerable to HIV infection. Informal workers, including migrant workers, make up 93 per cent of India’s 400 million-plus workforce. How to tackle discrimination towards workers with HIV and help prevent the spread of HIV have become a national priority, with the adoption of a national policy on HIV/AIDS and the world of work.