After receiving medical degree from M.S. University, Vadodara, Shrey completed Internal Medicine residency from the Saint Barnabas Medical Center, New Jersey. He practiced general medicine for two years before completing Master of Public Health (MPH) from the Johns Hopkins University. Later, he was Expanded Program on Immunization Manager for WHO office, Guyana. He returned to his hometown, Jhagadia, in later part of 2009 and joined SEWA Rural as research-coordinator and clinician. Over last five years, his team is leading a project to reduce deaths and malnutrition among pregnant women and children using mobile-phone technology and doing randomized trial. He has been involved in strengthening research division at SEWA Rural by blending his training and experience of research methodologies with invaluable service-delivery experience of the team.