PIN refers to the Postal Index Number. As the name indicates, this number is given by the postal department for indexing a particular area. This code contains 6 digits where each number indicates the district, sub district and so on. The last 2 digits refer to the sorting code of a particular area. For postal code purposes, Dadra and Nagar Haveli is divided into East Dadra and Nagar Haveli, Gangtok, North Dadra and Nagar Haveli, South Dadra and Nagar Haveli and West Dadra and Nagar Haveli areas. There are over 50 Pincodes in East Dadra and Nagar Haveli, 3 in Gangtok, around 20 in North Dadra and Nagar Haveli, around 30 in South Dadra and Nagar Haveli and close to 30 codes in West Dadra and Nagar Haveli area.