The Covid-19 pandemic has not caused a baby boom, but quite the opposite in the city. Mumbai registered nearly 24% fewer births in 2021 compared to the pre-pandemic year of 2019—the second year of the country's second most populous city recording a significant drop in birth registrations.

The traditional theory of demographic transition developed by Professor F.W. Notestein and his colleagues has occupied the center stage in the demographic literature for quite a long time. This theory was developed on the basis of the demographic experience of the developed world.