Multiple choice general knowledge history

PIN stands for

  1. Post Identity Number

  2. Postal Index Number

  3. Postal Identity Number

  4. Post index Number
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

PIN stands for Postal Index Number, the 6-digit code system used by India Post for efficient mail sorting and delivery. It was introduced in 1972. The other options incorrectly use 'Identity' or incorrect word order.

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