Ninnakarai Bo — Pincode 603203
Chengalpattu, Tamil Nadu
📍 Location Map — Pincode 603203
Shaded area shows approximate coverage. Map data © OpenStreetMap contributors.
🏤 Post Offices under Pincode 603203
| Office Name | Type | Delivery | District |
|---|---|---|---|
| Ninnakarai Bo | BO | ✓ Yes | Chengalpattu |
| Kavanur Bo | BO | ✓ Yes | Kanchipuram |
| Kattankolathur So | PO | ✓ Yes | Chengalpattu |
🔢 How Pincode 603203 is Constructed
Every Indian PIN (Postal Index Number) code is a 6-digit number. Each digit group encodes geographic and administrative information about the delivery area.
The first digit identifies one of India's 9 postal zones. Zone 6 covers Tamil Nadu, Kerala, Lakshadweep, Puducherry.
The first two digits together (60) identify the sub-zone. All pincodes in Tamil Nadu begin with 60.
The third digit narrows to a sorting district. The prefix 603 routes mail to the sorting office serving Chengalpattu in Tamil Nadu.
Digits 4–5 identify the delivery route or sub-area within the sorting district. Route 20 identifies the specific delivery area within Chengalpattu.
The final digit identifies the specific post office. Office 3 designates Ninnakarai Bo in Chengalpattu.
❓ Frequently Asked Questions
What is the pincode for Ninnakarai Bo?
The pincode for Ninnakarai Bo is 603203. It is a BO located in Chengalpattu, Tamil Nadu.
How many post offices are in pincode 603203?
There are 3 post offices operating under pincode 603203 in Chengalpattu, Tamil Nadu.
Is delivery available at pincode 603203?
Yes, delivery is available at pincode 603203 through Ninnakarai Bo and its associated offices.
Which district does pincode 603203 belong to?
Pincode 603203 is located in Chengalpattu district in the state of Tamil Nadu. It falls under the Tamilnadu postal circle.
What postal zone is pincode 603203 in?
Pincode 603203 falls in Zone 6 — Southern India. The sub-zone prefix 60 corresponds to Tamil Nadu.
🏤 Types of Post Offices in India
India Post operates a hierarchical network. Pincode 603203 is served by a BO.
The primary administrative hub for a postal division, overseeing all sub-offices and branch offices in its area.
The chief post office of a major city or state, handling the largest mail volume and often housing the Postmaster General.
Operates under an HPO, providing all standard postal services in urban and semi-urban areas.
The smallest tier, typically in rural areas. India has over 130,000 branch offices — the largest postal network in the world.