He joined the army and proved himself an effective but ruthless leader.
While he was the governor of Bengal, he won the Battle of Plassey in 1757 and oversaw plunder of the region, making a fortune.
Returned to India as governor and commander in chief of Bengal 1764-67. His greed led to increased devastation of 1700 Bengal famine, where 10million died.
In 1722 he was criticised in parliament for corruption.