Source : WordNet®

Siraj-ud-daula
     n : Indian general and nawab of Bengal who opposed the
         colonization of India by England; he captured Calcutta in
         1756 and many of his prisoners suffocated in a crowded
         room that became known as the Black Hole of Calcutta; he
         was defeated at the battle of Plassey by a group of
         Indian nobles in alliance with Robert Clive (1728-1757)