Although the General Post Office or GPO, Calcutta’s (Kolkata) central post office, is one of the city’s best known, and most often photographed heritage buildings, there are many things about it that remain unknown to the general public. Not many people are aware that the spot where the GPO stands today, once stood the Old Fort William of Calcutta, which was the centre of violent battle when the Nawab of Bengal, Siraj-ud-Daula laid siege to Calcutta. Even fewer people are aware that a few markers of the siege of Calcutta still remain.
