This paper, based on an empirical survey conducted in Delhi in October-November 2004, proposes to consider the provision of public primary health services, i.e. a major social infrastructure, as a case study of the changes brought up in urban governance in the past 15 years by economic liberalization, politico-administrative decentralization and the large consensus around the desirability of “good governance”, with a focus on India’s capital city. The paper successively examines the role played by four types of actors as intermediaries between the people and public providers of health services: elected representatives (municipal councillors but also members of the Legislative Assembly), and civil society organisations, consisting essentially of Resident Welfare Associations (RWAs) and Non Government Organizations (NGOs). What does the presence of these various categories of intermediaries change in the provision of health services? What do they do, with whom, against whom, for whom?