Waiting only for the decisive victory of Buxar over the allied forces of Bengal and Oudh, he resigned his seat and sailed for England in November 1764.
The Ganges enters the province near the town of Buxar, flows eastward and, passing the towns of Dinajpur, Patna, Monghyr and Colgong, leaves the province at Rajmahal.
In 1764 Major Munro won the decisive battle of Buxar, which laid Oudh at the feet of the conquerors, and brought the Mogul emperor as a suppliant to the British camp.
In 1765, after the battle of Buxar, when the nawab of Oudh had been decisively defeated and Shah Alam, the Mogul emperor, was a suppliant in the British camp, Lord Clive was content to claim no acquisition of territory.
He was a titular emperor only, since from the time of the defeat of Shah Alam at Buxar in 1764 all real power had resided with the East India Company; but all proclamations were still worded under "The King's Realm and the Company's rule."