Tamil Nadu is served by India Post through a comprehensive network of post offices covering every district, taluk, mandal, and village. All Tamil Nadu PIN codes begin with the digit “6” — placing the state in Zone 6 — Southern India (Karnataka, Kerala, Tamil Nadu). The state has 2049+ unique PIN codes covering 38 districts and over 11733 post office locations.
About Tamil Nadu Postal Circle
India Post manages postal services in Tamil Nadu through the Tamil Nadu Postal Circle. The postal circle oversees all Head Post Offices (HPost Offices), Sub Post Offices (S.O.) and Branch Post Offices (B.O.) across the state. Each district in Tamil Nadu has at least one Head Post Office that manages postal operations for that district.
The PIN code system was introduced in India on August 15, 1972 to enable efficient mail sorting and accurate delivery. Before PIN codes, postal workers faced confusion due to identical place names in different districts and states. Today, every post office in Tamil Nadu has a unique 6-digit PIN code that ensures letters, parcels, and Speed Post shipments reach the correct destination without errors.
Districts in Tamil Nadu
The following districts are covered by the Tamil Nadu Postal Circle:
- Ariyalur
- Chengalpattu
- Chennai
- Coimbatore
- Cuddalore
- Dharmapuri
- Dindigul
- Erode
- Kallakurichi
- Kanchipuram
- Kanniyakumari
- Karur
- Krishnagiri
- Madurai
- Mayiladuthurai
- Nagapattinam
- Namakkal
- Perambalur
- Pudukkottai
- Ramanathapuram
- Ranipet
- Salem
- Sivaganga
- Tenkasi
- Thanjavur
- The Nilgiris
- Theni
- Thiruvallur
- Thiruvarur
- Tiruchirappalli
- Tirunelveli
- Tirupathur
- Tiruppur
- Tiruvannamalai
- Tuticorin
- Vellore
- Villupuram
- Virudhunagar
Tamil Nadu PIN Codes — District-wise List
Here are the PIN codes for major post offices across Tamil Nadu. Each PIN code corresponds to a specific post office or delivery area:
Ariyalur District PIN Codes
- 608703 — Sriraman B.o
- 608901 — Kavarapalayam So
- 608901 — Nagampandal Bo
- 608901 — Attukurichi Bo
- 608901 — Ayyur Bo
- 608901 — Alagapuram Bo
- 608901 — Olaiyur Bo
- 608901 — Rangiam Bo
- 608901 — Silambur Bo
- 612901 — Gangaikondacholapuram So
How to Find PIN Code in Tamil Nadu
To find the correct PIN code for any area, village, town, or city in Tamil Nadu, use AllIndiaPinCode.store. Our database contains all 2049+ PIN codes from every district in Tamil Nadu, sourced directly from official India Post records.
PIN Code Uses in Tamil Nadu
Residents of Tamil Nadu need their correct PIN code for:
- Online shopping — delivery address verification on Amazon, Flipkart, Meesho
- Aadhaar card and PAN card applications
- Bank account opening and KYC verification
- Passport and government document applications
- Voter ID and Driving License registration
- Government scheme registration and benefits
- Insurance policy and legal documents
- India Post Speed Post and courier services
- College and university admission forms
- Income Tax Return and financial filings
India Post Services in Tamil Nadu
India Post provides the following services across all post offices in Tamil Nadu:
- Speed Post: Priority tracked delivery within India with guaranteed timelines
- Registered Post: Tracked delivery with acknowledgment card
- Express Parcel Post: Fast parcel delivery service for e-commerce and businesses
- Post Office Savings Account: Basic savings with attractive interest rates
- Recurring Deposit and Fixed Deposit: Secure savings instruments
- National Savings Certificate (NSC): Tax-saving investment scheme
- Sukanya Samriddhi Yojana: Girl child savings scheme
- Money Order: Domestic money transfer service
- India Post Payments Bank (IPPB): Digital banking at doorstep
- Postal Life Insurance (PLI): Insurance services
Search and verify any Tamil Nadu PIN code instantly on AllIndiaPinCode.store — India’s comprehensive PIN code directory with over 1,50,000 verified postal codes updated regularly from official India Post data.