India PIN

The Postal Index Number - a unique location indicator throughout India.
So Fort, Mumbai - 400 001 is the same as
Fort, Mumbai, Maharashtra - 400 001 is the same
Fort, Mumbai, Maharashtra, India - 400 001.

It looks better than Fort, Mumbai - 400 001, Maharashtra, India, which is the most common format I have seen.

The funny thing is that for a postal employee, India - 400 001 is sufficient. He does not need to know Fort, Mumbai or Maharashtra. Just 400 001.

The PIN unites India.

It may not seem very relevant, but may I request my learned friends to put this unifying factor in use? I am not sure if these are practical tips, but the following people can definitely try:
* Overseas Indians, while referring an address, may use City, State, India - PIN format.
* Indians, while travelling abroad, may end their addresses with the suggested City, State, India - PIN format.
* Indians mentioning anything, mainly in electronic media, that is likely to have an international audience, may mention the address that way.

More suggestions are welcome.