- PIN code
- 643103
- Main post office
- Pasteur Institute (sub office)
- District
- The Nilgiris
- State
- Tamil Nadu
- Postal division
- Nilgiris
- Region and circle
- Western Region Coimbatore, Tamilnadu circle
- Delivery
- Delivery PIN (3 of 3 offices deliver)
- Location
- Open on a map (11.355, 76.801)
Post offices with PIN 643103
| Post office | Type | Delivery |
|---|---|---|
| Pasteur Institute | Sub office | Delivers mail |
| Halakkarai | Branch office | Delivers mail |
| Yedappalli | Branch office | Delivers mail |
643103 covers 0 head offices, 1 sub office and 2 branch offices.
What the digits of 643103 mean
- 6: India Post's Southern region, which covers Kerala, Lakshadweep, Puducherry and Tamil Nadu (3,512 PINs).
- 64: the Tamilnadu postal circle; 186 PINs start with 64.
- 643: the sorting district, shared by 46 PINs in 1 district.
- 103: the delivery post office within it, Pasteur Institute.
Head post office for 643103
The post offices with this PIN belong to the Nilgiris postal division, whose head offices are listed below. Money orders, savings accounts and complaints that a sub or branch office cannot settle go to the head office.
- Coonoor head post office: 643101
- Udagamandalam head post office: 643001
Nearby PIN codes in The Nilgiris
- Coonoor RS643102
- Coonoor643101
- Ottupattarai643105
- Dr. Basuviah Nagar643007
- Finger Post643006
- Indunagar643005
- Aravenu643201
- Fernhill643004
All 47 PIN codes in The Nilgiris
Writing an address with 643103
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 Pasteur Institute post office The Nilgiris, Tamil Nadu – 643103
Frequently asked questions
Which post office has PIN code 643103?
3 post offices share it: Pasteur Institute, Halakkarai and Yedappalli, in The Nilgiris district, Tamil Nadu.
Is 643103 a delivery PIN code?
Yes. All 3 of its post offices deliver mail; letters addressed to 643103 are delivered.
Which district is 643103 in?
The Nilgiris district, Tamil Nadu. It is in the Nilgiris postal division (Western Region Coimbatore) of the Tamilnadu postal circle.
What is the head post office for 643103?
The Nilgiris postal division's head offices are Coonoor (643101) and Udagamandalam (643001).
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.