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Noida is not a metro City
Mexico City (pop: 21.16 million) qualifies as such.
Metro La Paz - Mexico City Metro - was created in 1991.
In kerala, no city is approved as a real metro. But, Kochi and Trivandrum are the cities eligible for a metro
Mexico City Metro was created in 1969.
The city of Cuernavaca (population: 365,168) qualifies as such.
Mexico City Metro Line A was created in 1991.
Mexico City (21.16 million) qualifies as such.
Mexico City (21.16 million) qualifies as such.
Tenochtitlan qualifies as such.
Mexico City qualifies as such.
Quebec City qualifies as such.