In April 1756, Siraj ud-Daulah became Nawab of Bengal and sought to reprimand the company for abusing their privileged trading rights.
[5] Siraj Ud Daulah was angered by Drake's perceived insolent response and tone and began plotting to punish the company.
[5] On 16 June 1756, Siraj Ud Daulah approached Calcutta with an army numbering 30,000 and within four days the town and Fort were captured.
[7] He was succeeded as Governor by Robert Clive, who would re-capture Calcutta following the Battle of Plassey and firmly establish Company rule in India.
Despite his disgrace, Drake benefited from Mir Jafar's payment of compensation and damages following the Battle of Plassey, and in 1759 returned to England with eight fellow Company officials and a considerable fortune.