The growing population in cities is filling the towering skyscrapers and sprawling slums. We will not be overhyping if we say our cities are overpopulated. This holds true at least for the developing world. Cities in these countries are full to the brim, and are facing difficulties in keeping pace in providing services and infrastructure facilities to the increasing population. Urban agglomerations are undeniably facing humongous challenges. Congestion, urban poverty, traffic problems, lack of adequate housing, poor sanitation are just some of the resultants of change in urban demography worldwide. Should we be worried? A review of present situation based on urban demographic trends