Shivalingappa S Halli is currently a Technical Advisor to the India Health Action Trust and Consultant to the UP Technical Support Unit. He is a Professor at the University of Manitoba for last 29 years and founding member of the University’s HIV/AIDS prevention programme team in Karnataka. In the latter role, he was mainly responsible for mobilizing community, administrative, political and religious support through advocacy in establishing the HIV/AIDS programme especially in northern Karnataka. Through his community and political consultations, the idea of Corridor Project including funding for it emerged. He conducted operational/innovative research to generate ideas for new programme interventions in areas such as workplaces (both in informal and formal sectors), migration (of both clients and female sex workers), religious gatherings namely ‘jatras’, etc. He participated in capacity building activities for both monitoring and evaluation and programme staff for HIV/AIDS programme. He was a member of the Evaluation Advisory Group of the Bill and Melinda Gates Foundation for HIV/AIDS programme in India.