PIN codes play a crucial role in India’s postal system by ensuring accurate identification of locations and smooth delivery of mail and parcels. One of the most important and historically significant PIN codes in West Bengal is 700001, which is assigned to the BBD Bagh area in Kolkata. This PIN code represents the administrative and commercial core of the city. The 700001 PIN code falls under Kolkata district in the state of West Bengal and is served by the Kolkata General Post Office (GPO), which functions as a Head Office. Due to the importance of the area it covers, this PIN code is widely used for government offices, banks, corporate establishments, and official correspondence. 🏙️ About BBD Bagh, Kolkata BBD Bagh, formerly known as Dalhousie Square, is one of the oldest and most prominent areas in Kolkata. It is located in central Kolkata and is known for its colonial-era architecture, administrative buildings, and financial institutions. The area has played a major role in the ci...