This research project will investigate the politics and ethics surrounding high-end diagnostic testing in India. Through interviews, participant observation, and group discussions with scientists and industry practitioners involved in this nascent, yet burgeoning industry, I will map two important sets of concerns in this field. The first is to do with pre-conception, pre-implantation and pre-natal genetic testing, important precursors to debates around genetic and social engineering. The second will look specifically at testing around ambiguous genitalia in newborn infants to understand how sex and gender discourses align with so-called bodily ambiguity. The discussions generated by these two forms of testing will feed into the researcher's larger interests in how class, race, and gender are both formative and transformed in the quest for future bodies free of defect and malfunction.