Sen was the first chairperson of the World Bank's External Gender Consultative Group and was a member on the Millennium Project's Task-force on Gender Equality.[1]
Sen has worked with the United Nations in several capacities, including as the lead consultant for the United Nations Population Fund's 2003–2007 India Population Assessment. She also serves on the Scientific and Technical Advisory group for the World Health Organization's Department of Reproductive Health and Research.[1]