Indian PIN code: six digits, the first being the postal zone and never zero. Six bare digits are common in reference numbers, so expect it to flag more than addresses.
Label: IN_PIN
(?<!\d)[1-9]\d{5}(?!\d)New Delhi, 110001 near the station. → 110001PIN 400001 for south Mumbai. → 400001PIN 011000PIN 11000Tags: in, location, contact