The PIN (Postal Index Number) is a code that was introduced in India during the 1972 Independence Day. This contains 6 digits. Chandigarh along with Punjab, Himachal Pradesh, Haryana and Jammu & Kashmir is one of the nine Pin code zones identified by the Postal Department. There are around 52 areas in Chandigarh that have been given these unique codes. The first digit in this code is related to the region, the second is related to the sub-region and the third code is named based on the sorting district in that particular region. The digits in the last 3 places are based on the post offices of those areas.