Delhi, including the rural areas in its periphery, is a little over 1,400 sq km. The new greenfield city of Atal Nagar-Nava Raipur is 250 sq km. Amaravati, the capital of Andhra Pradesh, after Telangana took away Hyderabad for its capital, is 217 sq km. The urbanisation challenge India faces is clearly, truly massive. It might be unwise to leave it to the wisdom of state-level politicians, who control land and land use.
Residents of the most disadvantaged peripheries of the Argentine capital are pushed to collaborate in the absence of municipal support. They build homes and create services that should be public. It is both admirable, and deplorable.