400001 PIN Code: Mumbai GPO, Mumbai, Maharashtra – Post Offices

PIN code: 400001
Main post office: Mumbai GPO (head office)
District: Mumbai
State: Maharashtra
Postal division: Mumbai GPO
Region and circle: Mumbai Region, Maharashtra circle
Delivery: Delivery PIN (1 of 6 offices delivers)
Location: Open on a map (18.939, 72.838)

Post offices with PIN 400001

Post office	Type	Delivery
Mumbai GPO	Head office	Delivers mail
Bazargate	Sub office	Counter only
Mpt	Sub office	Counter only
Stock Exchange	Sub office	Counter only
Tajmahal	Sub office	Counter only
Town Hall SO Mumbai	Sub office	Counter only

400001 covers 1 head office, 5 sub offices and 0 branch offices.

What the digits of 400001 mean

4: India Post's Western region, which covers Chhattisgarh, Goa, Madhya Pradesh and Maharashtra (2,784 PINs).
40: the Maharashtra postal circle; 297 PINs start with 40.
400: the sorting district, shared by 125 PINs in 4 districts.
001: the delivery post office within it, Mumbai GPO.

Head post office for 400001

Mumbai GPO is itself a head post office. It keeps the accounts for the Mumbai GPO division's sub and branch offices.

Nearby PIN codes in Mumbai

All 37 PIN codes in Mumbai

Writing an address with 400001

Put the PIN on the last line, after the town and state, so the sorting machines and postmen can read it:

Name
House number, street
Mumbai GPO post office
Mumbai, Maharashtra – 400001

Frequently asked questions

Which post office has PIN code 400001?

6 post offices share it: Mumbai GPO, Bazargate, Mpt, Stock Exchange, Tajmahal and Town Hall SO Mumbai, in Mumbai district, Maharashtra.

Is 400001 a delivery PIN code?

Yes. Mumbai GPO delivers mail; letters addressed to 400001 are delivered.

Which district is 400001 in?

Mumbai district, Maharashtra. It is in the Mumbai GPO postal division (Mumbai Region) of the Maharashtra postal circle.

What is the head post office for 400001?

Mumbai GPO is itself a head post office, with PIN 400001.

Sources

Last checked on 6 October 2026. PIN codes and post offices are from India Post’s directory on data.gov.in. Post offices are sometimes opened, merged or renamed; check with India Post before relying on a PIN for an official form.

400001 PIN code: Mumbai GPO, Mumbai