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PIN code 490001 is the Postal Index Number assigned to the A O Bhilai SO post office in DURG district, Chattisgarh. It is administered under the Chattisgarh Circle Postal Circle. The code falls under Zone 4 of India's postal network, covering the Western 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 (4) identifies the broad postal zone; the first three digits (490) pinpoint the postal district or sorting hub; and the last three digits (001) identify the specific delivery post office.
When addressing letters, parcels, or courier shipments to A O Bhilai SO in DURG, Chattisgarh, always include PIN – 490001 in the postal address to ensure accurate sorting and on-time delivery by India Post.
| PIN Code | 490001 |
| Zone | Zone 4 · Western India |
| Sort District | 490 |
| Delivery Code | 001 |
| Postal Circle | Chattisgarh Circle |
| State / UT | Chattisgarh |
Browse PIN codes for other post offices in DURG, Chattisgarh