Salauddin Biswas is from Bangladesh. After completing a B.A. and M.A. at the University of Dhaka, he joined an NGO for social work. In addition, he worked as college lecturer. During his work at the NGO he was very much touched by the health problems of the people and felt that in order to be able to make a difference, he should first take part in the MAHASSA program. He conducted fieldwork among the workers of Hazaribagh, the "cancer" of Dhaka city. The title of his thesis is "Work and Health among Tannery Workers: An Ethnography of Hazaribagh, Dhaka". At the moment, Salauddin is senior research associate at the James P. Grant School of Public Health at BRAC University in Dhaka.