Urbanization is an important demographic shift worldwide. India's urban population of 300 million represents 30 % of its total population; with the slum population in urban cities registering a 5 % growth in the last few years. Responding to the healthcare needs of urban poor is therefore very essential. Government of India focus has been mainly on rural health till the late 90s. Recognizing the urgency to manage urban health for the vulnerable sections of our population, the 9th and 10th Five Year Plans of the Government of India have laid special emphasis on developing a well structured network of urban primary care institutions. Ahmedabad city (also known as Ahmedabad Municipal Corporation, AMC) is the sixth largest city in India with a population of 3.5 million spread over 192 square kilometers, across 43 wards. AMC has nearly 2500 slums and chawls housing approximately 1.5 million people. Out of 43 wards in AMC, 9 wards which house more than 20 % of AMC population, have no government health facility at all. With more than 3500 private health facilities in AMC, it is therefore worthwhile to explore Public Private Participation (PPP) to improve the delivery of healthcare services. In this working paper, we outline our approach to developing a PPP model for a decentralized and integrated primary healthcare center for each ward of AMC. Our model is built on a clear understanding of the socio-economic profile, status of public health, and the healthcare seeking habits of Ahmedabad population. Our GIS (Geographic Information System) methodology guides the AMC authorities to identify good locations for urban health center (UHC) so as to ensure availability, affordability, accessibility, and equity to primary healthcare facilities to the slum populations. We illustrate our methodology for Vasna and Naroda wards in AMC.