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PIN code 210431 is the Postal Index Number assigned to the Aunta BO post office in HAMIRPUR district, Uttar Pradesh. It is administered under the Bihar Circle Postal Circle. The code falls under Zone 2 of India's postal network, covering the Northern 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 (2) identifies the broad postal zone; the first three digits (210) pinpoint the postal district or sorting hub; and the last three digits (431) identify the specific delivery post office.
When addressing letters, parcels, or courier shipments to Aunta BO in HAMIRPUR, Uttar Pradesh, always include PIN – 210431 in the postal address to ensure accurate sorting and on-time delivery by India Post.
| PIN Code | 210431 |
| Zone | Zone 2 · Northern India |
| Sort District | 210 |
| Delivery Code | 431 |
| Postal Circle | Bihar Circle |
| State / UT | Uttar Pradesh |
Browse PIN codes for other post offices in HAMIRPUR, Uttar Pradesh