Dr. Mahesh Puri is the Principal Investigator for the PPIUD study in Nepal. Dr. Puri holds a PhD in Demography, from Southampton University, UK, and a MSc in Reproductive & Sexual Health Research, from Centre for Population Studies from the London School of Hygiene & Tropical Medicine. Dr. Puri has been actively involved in the areas of reproductive and sexual health and rights including gender-based violence related research studies and program for more than 15 years in Nepal. Currently, Dr. Puri is Associate Director of Centre for Research on Environment Health and Population Activities (CREHPA). His areas of expertise are on mixing of qualitative and quantitative research methods in researching sensitive topics of reproductive and sexual health and rights. His current research focuses on maternal health, gender-based violence, sexual behavior, unintended pregnancy and abortion.