The aim of universal access to health care for most of the developing countries seems more challenging nowadays with rapid urbanization. We analyzed the health seeking behavior, as an indicator of the health access situation, its determinants and equitability among slum vs non-slum population in Kolkata. Public hospitals, found to be preferred by less-educated and uninsured people and provided cheaper service, although struggled with high indirect-costs and access barriers. People with high opportunity cost and higher social background were found to be more serious about treatment. However, the slum and non-slum people did not differ significantly in their health-seeking behaviour. A strengthened public health system with reduced access barrier is recommended. K E Y W O R D S health seeking behaviour, India, private vs public hospital, slum vs non-slum, urban health 1 | INTRODUCTION For most of the developing countries, the declared aim of the universal access to health care 1 becomes more challenging with the rapid urbanization. Reports showed that 54% of world population in 2015 lived in urban areas 1 and 828 Million of slum population of the world lived in developing countries. 2 Moreover, health care access situation in urban area is more complex than, and different from, the rural one in many ways, and hence, the question arises The work was carried out in the