"mid-class" usually means "The petty bourgeoisie" in CHina. it is quite different from "mid-class" in india.
Geneally speaking ,"mid-class" in India is equal to "working class" in CHina.
I live in a Tier4 city.
In the city ,"working class" families ( usually there are 3 members: parents and 1 kid) earn 50K-150KRMB(8K-24K USD) every year.
such "working class" families usually can afford most household applances such as TV sets,washing machines,refrigerators,AC and PC....and now it is not quite hard for them to buy one car.....
"working class" families usually have one house with lots of banks loans, however, they have to pay house-loans to banks every month...they have to spend decades paying off house-loans .
however, "mid-class" here of course should have more income and assets than "working calss".
In my eyes, a typical "mid-class" family in the city should have more than 2 houses with few bank loans and can earn 200K RMB(30K USD). they can easiy afford cars and regular trips...and their total assets is steadly growing....