- PIN code
- 603203
- Main post office
- Kattankolathur (sub office)
- District
- Chengalpattu
- State
- Tamil Nadu
- Postal division
- Chengalpattu
- Region and circle
- Chennai City Region, Tamilnadu circle
- Delivery
- Delivery PIN (3 of 3 offices deliver)
- Location
- Open on a map (13.368, 80.071)
Post offices with PIN 603203
| Post office | Type | Delivery |
|---|---|---|
| Kattankolathur | Sub office | Delivers mail |
| Kavanur | Branch office | Delivers mail |
| Ninnakarai | Branch office | Delivers mail |
603203 covers 0 head offices, 1 sub office and 2 branch offices. Some of them are in Kanchipuram district.
What the digits of 603203 mean
- 6: India Post's Southern region, which covers Kerala, Lakshadweep, Puducherry and Tamil Nadu (3,512 PINs).
- 60: the Tamilnadu postal circle; 476 PINs start with 60.
- 603: the sorting district, shared by 44 PINs in 2 districts.
- 203: the delivery post office within it, Kattankolathur.
Head post office for 603203
The post offices with this PIN belong to the Chengalpattu postal division, whose head office is listed below. Money orders, savings accounts and complaints that a sub or branch office cannot settle go to the head office.
- Chengalpattu head post office: 603001
Nearby PIN codes in Chengalpattu
- Guduvancheri603202
- Singaperumalkoil603204
- Elapakkam603201
- Maraimalai Nagar603209
- Urapakkam603210
- Annai Anjugam Nagar603211
- Anupuram603127
- Kovalam SO Kanchipuram603112
All 60 PIN codes in Chengalpattu
Writing an address with 603203
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 Kattankolathur post office Chengalpattu, Tamil Nadu – 603203
Frequently asked questions
Which post office has PIN code 603203?
3 post offices share it: Kattankolathur, Kavanur and Ninnakarai, in Chengalpattu district, Tamil Nadu.
Is 603203 a delivery PIN code?
Yes. All 3 of its post offices deliver mail; letters addressed to 603203 are delivered.
Which district is 603203 in?
Chengalpattu district, Tamil Nadu; some of its post offices are in Kanchipuram. It is in the Chengalpattu postal division (Chennai City Region) of the Tamilnadu postal circle.
What is the head post office for 603203?
The Chengalpattu postal division's head office is Chengalpattu (603001).
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.