It is absolutely true about the vast open fields in Andheri( E) & vast open march land in the West till about 10 yrs ago. Today the East is Prime location for Hotels, businesses & residential buildings. This attracts seasonal migrant labourers from outside the city who work in construction sites & day labourers many choosing to live this way to save money & send to their families. True, many have little choice but with no city / municipal laws to prevent such a situation it will not stop.
