The British East India Company against Siraj-ud-Daulah, the Nawab of Bengal, Bihar and Orissa, and a small French force. The British were assisted by traitors in the Nawab's high command.
Generals: Colonel Robert Clive against Siraj-ud-Daulah, the Nawab of Bengal.
Robert Clive of the British East India Company was actually the one who was declared victor of the Battle of Plassey, which took place 70 miles north of Calcutta in 1757. Clive, headed 1,000 English and 2,000 Indian (sepoy) soldiers. He, with eight pieces of artillery, routed 50,000 soldiers and 50 French-manned cannons of his opponent Siraj-ud-Daula, the Governor, or Nawab of Bengal. It was the victory of Plassey which established British supremacy in Bengal.
Clive thought that the best way to make safe the Company's interests in Bengal was to replace Siraj with a new and more docile nawab. He found a candidate in an unhappy elderly general named Mir Jafar and after complicated conspiratorial talks and the promise of huge bribes to all concerned, a secret agreement was smuggled into the women's quarters of Mir Jafar's house, which was being watched by Siraj's spies, and Mir Jafar signed it.