Black Hole of Calcutta to regions of space-time resulting from the gravitational collapse of very heavy stars. He recalled hearing physicist Robert Dicke in the early 1960s compare such gravitationally collapsed objects to the infamous prison. Black Hole of Calcutta The Black Hole of Calcutta was a small prison or dungeon in Fort William where troops of Siraj ud-Daulah, the Nawab of Bengal, held British prisoners of war for three days on 20 June 1756. John Zephaniah Holwell, one of the British prisoners and an employee of the East India Company, said that, after the fall of Fort William, the surviving British soldiers, Anglo-Indian
Cities and towns in West Bengal Cities and towns in West Bengal West Bengal is the state with highest population density in India. The state is dotted with several small and medium towns and cities. Historically, the main source of income of the people of West Bengal has been farming, and, as a consequence, the state previously had a large rural population skew. At the turn of the 20th century, however, the role of industry in West Bengal increased substantially, leading to a population move into urban areas. In 1947, when India gained independence, the erstwhile British Indian province of Bengal was divided into two parts: