At 7:30 a.m. in Mumbai, two workers travel toward the same commercial district. One lives near a rail line in a small rented room; the other has a larger home farther away and depends on two buses. Their wages cannot be understood apart from rent, travel time, reliability, safety, and care schedules. The city concentrates firms and workers, but proximity is rationed by land and transport. Urban productivity is therefore not merely a property of density. It is an outcome of who can reach which opportunities at what cost.

India’s urban transition affects national productivity, energy use, housing wealth, labor mobility, public health, and political representation. Yet city debates often treat congestion as an inconvenience, housing as a private asset, and municipal finance as administrative detail. In fact, these determine whether workers and firms can match, whether children reach schools, whether women can take jobs, and whether floods or heat destroy working time. The urban economy is a system of access.

The Economic Survey frames urbanization and infrastructure; PLFS shows employment patterns; household consumption reveals differences in spending burdens; state statistics locate variation in income, services, finance, and demographics. City-level data remain uneven, which is itself an institutional fact. When a national or state table cannot answer a city question, do not fill the gap with a vivid anecdote. Name the missing geography and seek transport, land, utility, budget, or administrative records.