Battle of Plassey & British Supremacy in Bengal

§1 — Bengal under the Independent Nawabs

Bengal under the Independent Nawabs (1717–1757)

Bengal in the 18th century was the richest province of the Mughal Empire. Its rich cotton, silk, and saltpetre exports made it the prime commercial target of European companies. The decline of central Mughal authority after Aurangzeb saw three successive Nawabs make Bengal effectively independent of Delhi:

The European Companies in Bengal by 1756

By the 1750s, three European companies operated in Bengal: the English at Calcutta (Fort William), the French at Chandernagore, and the Dutch at Chinsurah. The English EIC had received Farrukh Siyar's farman of 1717 — duty-free trade across Bengal in exchange for ₹3,000/year — which it routinely abused (using dastaks for private trade and undermining the Nawab's revenue).

§2 — Siraj-ud-Daula and the Origins of Conflict

Siraj-ud-Daula (April 1756 – June 1757)

Siraj-ud-Daula (Mirza Mohammad Siraj-ud-Daulah) was the grandson of Alivardi Khan and his nominated successor. He was about 23 years old when he became Nawab in April 1756. Capricious, inexperienced, and surrounded by enemies in his own court, his troubled reign lasted barely 14 months.

Causes of Conflict with the English

Several disputes brought Siraj into immediate conflict with the East India Company:

• Fortification of Calcutta — the British were strengthening Fort William without the Nawab's permission, ostensibly fearing a French attack (the global Seven Years' War was beginning).
• Misuse of dastaks — EIC employees were using free-trade passes for personal trade, depriving the Nawab of customs revenue.
• Asylum to Krishna Das — the Calcutta English had given refuge to Krishna Das, son of Raj Ballabh, who had absconded with state funds.
• Court factions — the British were suspected of intriguing with Siraj's rivals, including his cousin Shaukat Jung and his aunt Ghaseti Begum.

When the British ignored the Nawab's order to stop fortifying Calcutta, Siraj marched on Calcutta with a large force.

§3 — The Black Hole of Calcutta (June 1756)

Capture of Calcutta and the Black Hole (June 1756)

Siraj-ud-Daula captured Fort William on 20 June 1756. The Governor, Roger Drake, fled by boat with most of the senior officials. The remaining British and Indian defenders were captured.

The Black Hole Episode

According to John Zephaniah Holwell (one of the survivors and a leading British official), 146 prisoners were confined in a small cell (about 18 ft × 14 ft) overnight, of whom only 23 survived — the rest dying of suffocation, heat, and dehydration. Holwell's account, published with great drama, became central to British propaganda.

Most modern historians dispute Holwell's numbers — the cell could not have physically held 146 people. The actual number was probably 64 confined, of whom 21 survived. Siraj-ud-Daula himself was almost certainly unaware of the incident; it was the action of subordinate officers. Nonetheless, the Black Hole became the moral pretext for British retaliation.

The British also renamed Calcutta as "Alinagar" as ordered by Siraj — a name that lasted only six months until British recapture.

§4 — Recapture of Calcutta and the Treaty of Alinagar

Recapture of Calcutta and the Treaty of Alinagar (February 1757)

News of Calcutta's fall reached Madras in August 1756. The Madras Council despatched Robert Clive with an army and Vice-Admiral Charles Watson with a fleet. Clive recaptured Calcutta in January 1757.

Faced with the Afghan threat from the north (Ahmad Shah Abdali had just sacked Delhi in 1757) and unwilling to fight a prolonged war, Siraj signed the Treaty of Alinagar (9 February 1757) with the EIC. Terms:

• Restoration of all factories, privileges, and trading rights to the Company.
• Compensation for losses suffered in 1756.
• Recognition of the Company's right to fortify Calcutta.
• Right to mint coins.

Clive immediately violated the spirit of the treaty by attacking the French at Chandernagore (March 1757) — a serious breach since Siraj had asked the British to leave the French alone.

§5 — The Conspiracy and the Battle

The Conspiracy

Clive's real strategy was not battle but conspiracy. Through Hindu banker Jagat Seth (Mahtab Rai and Maharaja Swarup Chand) and Amir Chand (Omichand), he opened secret negotiations with disaffected courtiers of Siraj — chiefly:

The Battle (23 June 1757)

The battle was fought at Palashi (Plassey), a village on the banks of the Bhagirathi, about 150 km north of Calcutta. The forces:

Course of the Battle

The fighting began around 8 a.m. on 23 June 1757 with an artillery duel. Heavy monsoon rain (an iconic detail) wet the powder of Siraj's gunners — but Clive had covered his ammunition. Mir Madan, Siraj's loyal general, was killed by a cannonball around 3 p.m. — a turning point.

With Mir Jafar, Rai Durlabh, and Yar Lutuf Khan refusing to engage their three divisions, Siraj was abandoned by most of his army. He fled the field around 5 p.m. The battle was over by sunset. British casualties were trivial (about 22 killed); Bengal casualties were 500–600 (mostly the loyal contingent under Mir Madan). The famous mango grove at Plassey concealed Clive's small force during the rain — a detail preserved in countless paintings.

§6 — After Plassey: Mir Jafar & Mir Qasim

After Plassey: Puppet Nawabs

Siraj fled to Murshidabad and then to Patna. He was captured at Rajmahal and brought back to Murshidabad, where he was murdered on 2 July 1757 on the orders of Miran, son of Mir Jafar.

Mir Jafar (1757–60)

Mir Jafar was installed as Nawab in June 1757. The Company extracted enormous payments from the Bengal treasury — Clive personally received £234,000 (about ₹23 lakh, an astronomical sum); the Company received about £1.65 million; the Calcutta English Council members shared substantially. The Bengal treasury was effectively emptied. Mir Jafar also confirmed Calcutta's zamindari rights to the Company including the 24 Parganas.

By 1760 Mir Jafar was bankrupt and unable to meet British demands. The Company replaced him with his son-in-law Mir Qasim.

Mir Qasim (1760–63)

Mir Qasim proved a far more efficient Nawab than expected. He paid additional sums (Burdwan, Midnapur, Chittagong were ceded to the Company) and shifted his capital from Murshidabad to Munger (Bihar) — away from British influence. He reformed his army on European lines (with Armenian commander Gurgin Khan), abolished internal duties on his own subjects to equalise them with the privileged British, and resisted the misuse of the dastaks.

The dispute over the dastaks escalated to war. Mir Qasim was defeated and fled to the protection of Shuja-ud-Daula of Awadh. The combined forces of Mir Qasim, Shuja-ud-Daula, and Mughal Emperor Shah Alam II were defeated by Hector Munro at the Battle of Buxar (22 October 1764) — a more decisive military victory than Plassey.

Mir Jafar was restored as Nawab from 1763 to his death in 1765. After Mir Jafar, his son Najm-ud-Daula became Nawab — a complete British puppet.

§7 — Dual Government in Bengal (1765–1772)

Dual Government / Diarchy in Bengal (1765–1772)

After the Treaty of Allahabad (1765), Robert Clive (in his second term as Governor) devised a system known as Dual Government or Diarchy:

The result was a system in which the Company exercised real power without responsibility for administration. The Indian Naibs handled day-to-day collection and justice, while the Company collected the proceeds and the Nawab retained the trappings without authority.

Consequences of Dual Government

• Administrative chaos — neither the Company nor the Nawab took ownership of governance.
• Revenue extortion — Naib Diwans squeezed peasants to meet British demands.
• Bengal Famine of 1770 (Chhiyattorer Manvantar) — drought and Company indifference caused the death of an estimated 10 million people (one-third of Bengal's population). The Company continued to collect revenue rigorously through the famine.
• Decline of Bengal industry — Indian weavers were forced into "investment" arrangements at uncompetitive prices.

The system was abolished by Warren Hastings in 1772, who shifted the treasury and Nawab's nominal capital from Murshidabad to Calcutta. The Company assumed direct responsibility for Bengal administration. The Regulating Act of 1773 followed, marking the beginning of formal parliamentary supervision.

§8 — Significance of Plassey

Significance of Plassey

Although tactically a small engagement, Plassey was a landmark in Indian history for several reasons:

• Foundation of British political power in India — for the first time the Company controlled the most prosperous province of India through a puppet Nawab.
• Drain of Bengal wealth — vast sums in personal bribes and Company "compensation" enriched Britain. K.N. Chaudhuri's research suggests Bengal funded British investment in Asia for the next decade.
• Decline of indigenous textile industries — Indian weavers were monopolised by the Company at fixed low prices.
• Demonstration of "low-cost conquest" — Indian conquests could be funded from Indian revenues, not from English taxpayers — making conquest commercially attractive.
• Decline of Mughal authority — the Nawab of Bengal was no longer a Mughal subordinate but a Company puppet. The Mughal shadow over Bengal effectively ended.

The transition from commerce to conquest was not yet complete. Plassey gave the Company control through manipulation; Buxar 1764 proved its military superiority; and the Treaty of Allahabad 1765 gave it constitutional sanction.

§9 — Frequently Asked Questions

Frequently Asked Questions