“…Taking our cue from recent studies that have brought questions of the social implications of biotechnology strongly to the analytical fore and drawn attention to the variegated biopolitical milieus of South Asian tissue economies (Cohen 1999(Cohen , 2001(Cohen , 2004(Cohen , 2010(Cohen , 2011a(Cohen , 2011bBharadwaj 2000Bharadwaj , 2003Glasner 2009;Bharadwaj & Glasner 2009;Simpson 2004aSimpson , 2004bSimpson , 2009aSimpson , 2009bSimpson , 2011Sunder Rajan 2006;Reddy 2007;Egorova 2010, Mumtaz et al 2012, this special issue ranges widely -theoretically, thematically and regionally -in examining South Asian variants of and engagements with diverse modes of biological exchange: caste, gender and blood donation in Pakistan (Mumtaz & Levay), DNA testing amongst a former Untouchable community in south India (Egorova) and amongst diasporic Indians in Houston, Texas (Reddy), body (cadaveric) donation in India (De Looze), the use of fake blood in Bangladeshi cinema (Hoek), the mobilisation of blood, hearts and ketones to protest the Indian government's failure to provide redress or care to victims of the 1984 Bhopal industrial disaster (Banerjee), and blood-based political portraits and petitions in south India (Copeman). In considering this complex of issues we seek to extend the parameters of classic accounts of the role of substance transactions in the production of South Asian personhood into investigations of the biopolitics and economies of substance that shape people and communities in diverse parts of the subcontinent.…”