Who was the Nawab of Bengal when the incident of “Black Hole” took place ?
[A] Mir Zafar
[B] Mir Qasim
[C] Alivardi Khan
[D] Sirajuddaula

Sirajuddaula: 20 June 1756 , the incident of “Black Hole” take place.It is said that Nawab Sirajuddaula took 146 english as prisoners and shut down them for the night in a small cell. Out of 146,only 23 survive in the next morning. The story is disputed.