How Google Maps fixed India's street name problem [video]

They have street names, but the areas are quite massive so you would have street names that would repeat and the areas are in constant development and more streets and flyovers gets added or removed every 2-3 years.

Address in India follows a block approach and the address is usually longer than a comparable western address, example;

B1803 xyz apartment

Sub block name

Block name

City division name

City name with pincode

State name

B108 stands for B wing 18th floor and house 3 in that floor in an apartment complex named xyz.

Street names don't scale well when you have a billion people with lot of vertical buildings in places like India or china.

Locl postmen are often very familiar with the area, so often, a full name, apartment name and pincode can uniquely identify your house. (In my pincde atleast).

Also helps that the same lady has been delivering our mail for 10 years now, so she knows our name, comes home during Navratri and so on.