Siraj ud-Daulah in the context of "Kolkata"

Company rule in India (also known as the Company Raj, from Hindi rāj, lit. 'rule') refers to regions of the Indian subcontinent under the control of the British East India Company (EIC). The EIC, founded in 1600, established its first trading post in India in 1612, and gradually expanded its presence in the region over the following decades. During the Seven Years' War, the East India Company began a process of rapid expansion in India, which resulted in most of the subcontinent falling under its rule by 1857, when the Indian Rebellion of 1857 broke out. After the rebellion was suppressed, the Government of India Act 1858 resulted in the EIC's territories in India being administered by the Crown instead. The India Office managed the EIC's former territories, which became known as the British Raj.

The range of dates is taken to have commenced either in 1757 after the Battle of Plassey, when the Nawab of Bengal Siraj ud-Daulah was defeated and replaced with Mir Jafar, who had the support of the East India Company; or in 1765, when the Company was granted the diwani, or the right to collect revenue, in Bengal and Bihar; or in 1773, when the Company abolished local rule (Nizamat) in Bengal and established a capital in Calcutta, appointed its first Governor-General of Fort William, Warren Hastings, and became directly involved in governance. The East India Company significantly expanded its influence throughout the Indian subcontinent after the Anglo-Mysore Wars, Anglo-Maratha Wars, and Anglo-Sikh Wars. Lord William Bentinck became the first Governor General of India in 1834 under the Government of India Act 1833.

Kolkata, also known as Calcutta (its official name until 2001), is the capital and largest city of the Indian state of West Bengal. It lies on the eastern bank of the Hooghly River, 80 km (50 mi) west of the border with Bangladesh. It is the primary financial and commercial centre of eastern and one of the gateways to northeastern India. Kolkata is the seventh most populous city in India with an estimated city proper population of 4.5 million (0.45 crore) while its metropolitan region Kolkata Metropolitan Area is the third most populous metropolitan region of India with a metro population of over 15 million (1.5 crore). Kolkata is regarded by many sources as the cultural capital of India and a historically and culturally significant city in the historic region of Bengal.

The three villages that predated Calcutta were ruled by the Nawab of Bengal under Mughal suzerainty. After the Nawab granted the East India Company a trading license in 1690, the area was developed by the Company into Fort William. Nawab Siraj ud-Daulah occupied the fort in 1756 but was defeated at the Battle of Plassey in 1757, after his general Mir Jafar mutinied in support of the company, and was later made the Nawab for a brief time. Under company and later crown rule, Calcutta served as the de facto capital of India until 1911. Calcutta was the second largest city in the British Empire, after London, and was the centre of bureaucracy, politics, law, education, science and the arts in India. The city was associated with many of the figures and movements of the Bengali Renaissance. It was the hotbed of the Indian nationalist movement.

Alivardi Khan (1671 – 9 April 1756) was the fourth Nawab of Bengal from 1740 to 1756. He toppled the Nasiri dynasty of Nawabs by defeating Sarfaraz Khan in 1740 and assumed power himself.

During much of his reign Alivardi encountered frequent Maratha raids under Raghuji Bhonsle, culminating in the surrender of the province of Orissa in a peace settlement in 1751. He also faced separatist rebellions in Bihar as well as a revolt from his grandson Siraj ud-Daulah, though these were suppressed.

Khoja Wajid (also spelled Wazid, Wazeed; d. 1759) was a wealthy Armenian merchant who played a prominent role in the economic and political life of Bengal in the 1740s and 1750s.

He was the son of Khoja Mahmet Fazel, another notable Armenian merchant. Based in the port town of Hughli, he used his business prowess and influence at the court of the Nawab of Bengal to consolidate his commercial empire, gaining control over the economy of Bihar and establishing highly profitable monopolies over the trade of saltpeter and salt. He also controlled most of the opium trade. After consolidating his control over Bengal's inland trade, he expanded his operations to maritime commerce and acquired a trading fleet which, according to Sushil Chaudhury, "dominated the Asian maritime trade of Hughli." He had extensive business connections with the French, Dutch and English trading companies in India. In the early 1740s, Wajid became the official representative of the Armenian merchants of Bengal at the court of the faujdar of Hughli, later gaining a place at the court of the nawab in Murshidabad. By the early 1750s, he had become a political figure of great influence and a close ally of Nawab Alivardi Khan and his successor Siraj ud-Daulah. When Siraj came into conflict with the English, Wajid was sent as the nawab's emissary to negotiate with the English prior to the Siege of Calcutta. Wajid's commercial interests suffered after the English sacked Hughli, ostensibly in retaliation for Siraj's capture of Calcutta. Seeking to restore his fortunes, Wajid advised the nawab to ally with the French against the British, but fell out of favor at court when this plan failed. He was one of the last to join the conspiracy against Siraj ud-Daulah in May 1757.

The history of Bangladesh dates back over four millennia to the Chalcolithic period. The region's early history was characterized by a succession of Hindu and Buddhist kingdoms and empires that fought for control over the Bengal region. Islam arrived in the 8th century and gradually became dominant from the early 13th century with conquests led by Bakhtiyar Khalji and the activities of Sunni missionaries like Shah Jalal. Muslim rulers promoted the spread of Islam by building mosques across the region. From the 14th century onward, Bengal was ruled by the Bengal Sultanate, founded by Fakhruddin Mubarak Shah, who established an individual currency. The Bengal Sultanate expanded under rulers like Shamsuddin Ilyas Shah, leading to economic prosperity and military dominance, with Bengal being referred to by Europeans as the richest country to trade with. The region later became a part of the Mughal Empire, and according to historian C. A. Bayly, it was probably the empire's wealthiest province.

Following the decline of the Mughal Empire in the early 1700s, Bengal became a semi-independent state under the Nawabs of Bengal, ultimately led by Siraj ud-Daulah. It was later conquered by the British East India Company after the Battle of Plassey in 1757. Bengal played a crucial role in the Industrial Revolution in Britain, but also faced significant deindustrialization. The Bengal Presidency was established during British rule.