INDIAN HISTORY

Detailed explanation-1: -Notes: The Black Hole tragedy took place during the tenure of Siraj-ud-Daulah. The Black Hole of Calcutta was a dungeon in the Fort William, Calcutta. The troops of Siraj ud-Daulah, the Nawab of Bengal, held British prisoners of war on the night of 20 June 1756.

Detailed explanation-2: -Hint: The black hole incident of Calcutta dated back to the night of 20 June 1756. The troops of European army were captured and locked in the black room for three days by the Nawab of Bengal resulting in the death of many by suffocation; this whole incident is known as the black hole.