621803 PIN Code
Ariyalur, Tamil Nadu
📋 Post Offices for PIN Code 621803
| # | Post Office / Area | District | State |
|---|---|---|---|
| 1 | Anikduichan BO | Ariyalur | Tamil Nadu |
| 2 | Eravangudi BO | Ariyalur | Tamil Nadu |
| 3 | Kallathur Thandalai SO | Ariyalur | Tamil Nadu |
| 4 | Kalleri BO | Ariyalur | Tamil Nadu |
| 5 | Kattathur BO | Ariyalur | Tamil Nadu |
| 6 | Koovathur BO | Ariyalur | Tamil Nadu |
| 7 | Kulathur BO | Ariyalur | Tamil Nadu |
| 8 | Kumiliankuli BO | Ariyalur | Tamil Nadu |
| 9 | Vadugarpalayam BO | Ariyalur | Tamil Nadu |
| 10 | Vettiarvettu BO | Ariyalur | Tamil Nadu |
| 11 | Vizhapallam BO | Ariyalur | Tamil Nadu |
| 12 | ZMelur BO | Ariyalur | Tamil Nadu |
ℹ️ About PIN Code 621803
PIN Code 621803 is a 6-digit postal identification number assigned by India Post to the Ariyalur district in Tamil Nadu. This PIN code serves 12 post office areas including Anikduichan Bo and surrounding localities.
The PIN code system — short for Postal Index Number — was introduced in India on August 15, 1972 to simplify mail sorting and ensure accurate delivery across the country. Before PIN codes, postal workers often faced confusion due to identical place names in different states. Today, India Post uses over 1,50,000 unique PIN codes to serve every corner of the country from Kashmir to Kanyakumari.
🔢 PIN Code 621803 — Structure Breakdown
Every digit in a PIN code carries specific geographic meaning:
| Digit(s) | Value | Meaning |
|---|---|---|
| 1st Digit | 6 | Postal Zone — Southern India (Karnataka, Kerala & Tamil Nadu) |
| 2nd & 3rd Digits | 21 | Sub-zone & Sorting District |
| 4th–6th Digits | 803 | Specific Post Office in Ariyalur |
📮 How to Use PIN Code 621803
PIN code 621803 is required whenever you send or receive mail, courier, or parcels addressed to any location in Ariyalur, Tamil Nadu. Here are common situations where this PIN code is used:
- Online shopping delivery addresses (Amazon, Flipkart, Meesho, etc.)
- Bank account opening and KYC address verification
- Aadhaar card, PAN card, and Voter ID registration forms
- Passport and government document applications
- Insurance policy address and nominee address fields
- Job application and college admission forms
- India Post letters, Speed Post and registered mail
- Courier services (DTDC, Blue Dart, Delhivery, etc.)
🏙️ About Ariyalur District, Tamil Nadu
Ariyalur is one of the districts in Tamil Nadu, served by India Post through multiple PIN codes including 621803. The district has its own Head Post Office (HPost Office) and multiple Sub Post Offices and Branch Post Offices that facilitate daily mail and parcel delivery services.
India Post operates over 1,55,000 post offices across India — the largest postal network in the world — ensuring that even the most remote villages receive their mail through the correct PIN code routing system. Each PIN code like 621803 plays a vital role in keeping this network organized and efficient.
🔍 How to Verify PIN Code 621803
You can verify and confirm PIN code 621803 through the following official and trusted methods:
Visit indiapost.gov.in and use the PIN code finder tool to verify delivery serviceability.
Search any PIN code instantly using our free search tool with 1,50,000+ records.
Visit or call your nearest post office to confirm the correct PIN for your specific area.
Courier sites like Amazon, Flipkart, and DTDC also show PIN code serviceability for deliveries.
📍 Nearby PIN Codes in Ariyalur
These PIN codes are located near 621803 in Ariyalur district: