feel urban population is classified in 6 categories with the percentage (approximate figure of my estimate) in big city:
catagory percentage may change depending on the growth and the development of the country.Higher the growth better
the percentage of rich, low/ high and medium. If the country is undeveloped the percentage of poor and below poverty
line will increase. Low medium class percentage is always high in most countries.
and higher medium class are from organized sectors and life is heaven. Major part of medium class has their factories (informal
sectors) or shops, services etc; but life is comfortable. Lower medium class life is too competitive as they do not want to
see below, this categorys life is show up; they buy a car to show that they too have, they are full of dreams for good life.
Some percentage of this category is migratory but settled down. Most of poor and below poverty line people are migratory from
rural villages. Lower medium class is mostly educated so they find jobs or start small cottage industries. But poor and below
poverty people work in unorganized sectors. They together comprise and most from this 50% live in unorganized slum areas
or shacks in unhygienic condition which makes their life hell. This category increases each day to overpopulate city.