Communication from a research seminar about South Asian Mobility, Migration and Diaspora : The World of Road Workers in Ladakh, India by Jonathan Demenge (IDS, Brighton), Paris, May 13th 2009. In French. From 3'40 to 7'20, music from a Powerpoint presentation can be heard. The communication restarts afterwards. More information about the research seminar : http://midas.hypotheses.org