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PIN code 700040 is the Postal Index Number assigned to the Netaji Nagar SO Kolkata post office in KOLKATA district, West Bengal. It is administered under the West Bengal Circle Postal Circle. The code falls under Zone 7 of India's postal network, covering the Eastern India region.
India's PIN code system — standing for Postal Index Number — was introduced on 15 August 1972 to streamline postal sorting and delivery across the country. Each 6-digit code is structured systematically: the first digit (7) identifies the broad postal zone; the first three digits (700) pinpoint the postal district or sorting hub; and the last three digits (040) identify the specific delivery post office.
When addressing letters, parcels, or courier shipments to Netaji Nagar SO Kolkata in KOLKATA, West Bengal, always include PIN – 700040 in the postal address to ensure accurate sorting and on-time delivery by India Post.
| PIN Code | 700040 |
| Zone | Zone 7 · Eastern India |
| Sort District | 700 |
| Delivery Code | 040 |
| Postal Circle | West Bengal Circle |
| State / UT | West Bengal |
Browse PIN codes for other post offices in KOLKATA, West Bengal