Robert Clive in the context of "Company rule in India"

The Battle of Plassey was a decisive victory of the British East India Company, under the leadership of Robert Clive, over the Nawab of Bengal and his French allies on 23 June 1757. The victory was made possible by the defection of Mir Jafar, Nawab Siraj-ud-Daulah's commander in chief, as well as much of the Bengal Subah's armies being earlier committed against an Afghan invasion led by Ahmad Shah Durrani against the Mughal Empire. The battle helped the British East India Company take complete control of Bengal in 1773. Over the next hundred years, they continued to expand their control over vast territories in the rest of the Indian subcontinent and Burma.

The battle took place at Palashi (Anglicised version: Plassey) on the banks of the Hooghly River, about 150 kilometres (93 mi) north of Calcutta (now Kolkata) and south of Murshidabad in West Bengal, then capital of Bengal State. The belligerents were the British East India Company, and the Nawab Siraj-ud-Daulah, the last independent Nawab of Bengal. He succeeded Alivardi Khan (his maternal grandfather). Siraj-ud-Daulah had become the Nawab of Bengal the year before, and he had ordered the English to stop the extension of their fortification. Robert Clive bribed Mir Jafar, the commander-in-chief of the Nawab's army, and also promised to make him Nawab of Bengal. Clive defeated Siraj-ud-Daulah at Plassey in 1757 and captured Calcutta.

Fort St. George (or historically, White Town) is a fortress at the coastal city of Chennai, India. Founded in 1639, it was the first English (later British) fortress in India. The construction of the fort provided the impetus for further settlements and trading activity, in what was originally an uninhabited land. Thus, it is a feasible contention to say that the city (named Madras since before the arrival of the Europeans until July 1996) evolved around the fortress. The fort currently houses the Tamil Nadu legislative assembly and other official buildings.

Mir Jafar (Full Name:Syed Mir Muhammad Jafar Ali Khan Bahadaur) (c. 1691 – 5 February 1765), was a commander-in-chief or military general who reigned as the first dependent Nawab of Bengal of the British East India Company. His reign has been considered by many historians as the start of the expansion of British control of the Indian subcontinent in Indian history and a key step in the eventual British domination of vast areas of pre-partition India. He is notoriously known for his betrayal of Nawab Siraj-ud-Daulah (Nawab of Bengal, Bihar and Orissa) in the Battle of Plassey.

Mir Jafar served as the commander of the Bengali army under Siraj ud-Daulah, but betrayed him during the Battle of Plassey and ascended to the masnad after the British victory in 1757. Mir Jafar received military support from the East India Company until 1760, when he failed to satisfy various British demands. In 1758, Robert Clive discovered that Jafar had made a treaty with the Dutch East India Company at Chinsurah through his agent Khoja Wajid. Dutch ships of the line were also seen in the River Hooghly. Jafar's dispute with the British eventually led to the Battle of Chinsurah. British company official Henry Vansittart proposed that since Jafar was unable to cope with the difficulties, Mir Qasim, Jafar's son-in-law, should act as Deputy Subahdar. In October 1760, the company forced him to abdicate in favor of Qasim. However, the East India Company eventually overthrew Qasim as well due to disputes over trade policies. Jafar was restored as the Nawab in 1763 with the support of the company. Mir Qasim, however, refused to accept this and went to war against the company. Jafar ruled until his death on 5 February 1765 and lies buried at the Jafarganj Cemetery in Murshidabad.

Mir Syed Jafar Ali Khan Mirza Muhammad Siraj-ud-Daulah (1733 – 2 July 1757), commonly known as Siraj-ud-Daulah or Siraj ud-Daula, was the last independent Nawab of the Bengal Subah. The end of his reign marked the start of the rule of the East India Company over Bengal and later almost all of the Indian subcontinent.

Siraj succeeded his maternal grandfather, Alivardi Khan as the Nawab of Bengal in April 1756 at the age of 23. Betrayed by Mir Jafar, the commander of Nawab's army, Siraj lost the Battle of Plassey on 23 June 1757. The forces of the East India Company under Robert Clive invaded and the administration of Bengal fell into the hands of the company.

Warren Hastings FRS (6 December 1732 – 22 August 1818) was a British colonial administrator, who served as the first governor of the Presidency of Fort William (Bengal), the head of the Supreme Council of Bengal, and so the first governor-general of Bengal in 1772–1785. He and Robert Clive are credited with laying the foundation of the British Empire in India. He was an energetic organizer and reformer. In 1779–1784, he led forces of the East India Company against a coalition of native states and the French. In the end, the well-organised British side held its own, while France lost influence in India. In 1787, he was accused of corruption and impeached, but he was eventually acquitted in 1795 after a long trial. He was made a privy councillor in 1814.

Joseph Marquis Dupleix (French pronunciation: [ʒozɛf maʁki dyplɛks]; Unknown – 10 November 1763) was Governor-General of French India and rival of Robert Clive.