Question

Cities that grow on the periphery of big cities​

Answer 1

Answer:

A conurbation is a region comprising a number of metropolises, cities, large towns, and other urban areas that, through population growth and physical expansion, have merged to form one continuous urban or industrially developed area

Answer 2

Answer:

metropolitan cities

Explanation:

if you want names then there are many. Mumbai, delhi, Kolkata, etc