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
Economy of West Bengal Economy of West Bengal West Bengal has the sixth largest economy in India with . It is primarily dependent on agriculture and medium-sized industry, although services and heavy industries play an increasingly significant role in the economy of the state. Years after independence, West Bengal was still dependent on the central government for meeting its demands for food as production remained stagnant and the Green Revolution bypassed the state. However, there has been a significant spurt in food production since the 1980s. The state is now one of the few with a surplus, producing nearly 20% of the rice and