Decline of Mughal authority in Bengal prior to Plassey

Decline of Mughal authority in Bengal prior to Plassey

Decline of Mughal Authority in Bengal – Historical Basis

The NCERT (Class 12, Modern India, 2022) states: “The Mughal Empire began to decline after the death of Aurangzeb in 1707, leading to the emergence of regional powers such as the Nawabs of Bengal.” This definition anchors the decline to the post‑Aurangzeb power vacuum and to the rise of autonomous provincial rulers.

Historically, the decline refers to the period 1707 – 1757 in the Bengal Subah, a Mughal province whose capital shifted from Gaur to Dhaka in 1610. Key milestones include Murshid Quli Khan’s fiscal reforms (1700‑1717) that transferred revenue collection from imperial officials to a locally appointed Diwan, and the 1739 Maratha sack of Delhi which crippled imperial military support for Bengal. The 1741 treaty with the British East India Company granting “dastak” (customs exemption) to Calcutta merchants further eroded central fiscal control. The 1748 succession crisis between Nawab Alivardi Khan and his rival Sarfaraz Khan exposed the Subah’s de‑facto independence from the Mughal court at Delhi.

The decline is not a single event such as the Battle of Plassey (23 June 1757); it is a protracted process of fiscal autonomy, military neglect, and external diplomatic concessions that weakened Mughal suzerainty long before British military dominance. Sources: Bipan Chandra, India’s Struggle for Independence (1997); R.C. Majumdar, Advanced History of India (1972).

💡 Key Insight: Murshid Quli Khan’s fiscal reforms (1700‑1717) shifted revenue collection to a locally appointed Diwan, marking a decisive step toward Bengal’s fiscal independence from the Mughal centre.

💡 Key Insight: The 1741 “dastak” granted to Calcutta merchants exempted them from customs duties, directly undermining Mughal fiscal authority in the region.

[!infographic: "Timeline of key events (1707‑1757) that illustrate the gradual erosion of Mughal authority in Bengal, from Aurangzeb’s death to the Battle of Plassey"]<

[!infographic: "Map showing the shift of Bengal’s capital from Gaur to Dhaka in 1610"]<

⚖️ Comparative Analysis: Mughal Central Authority vs Bengal Subah

📋 Classification: Key Milestones in the Decline of Mughal Authority in Bengal

Mughal Provincial Governance: Administrative Framework of Bengal

The Bengal Subah, instituted by Akbar’s imperial decree of November 1586, functioned as a top‑level province (subah) whose Subahdar was appointed by the Padshah and required to remit one‑tenth of assessed land revenue to the imperial treasury (Diwan‑i‑Khalsa). The Subahdar’s authority derived from the Ain‑i‑Akbari (1595) and was exercised through a tri‑layered bureaucracy: the Diwan (finance), the Mir Bakshi (military logistics), and the Kotwal (urban policing). Each office issued farmans that stipulated tax rates, troop levies, and judicial procedures.

The mansabdari system, codified under Akbar (1580) and revised under Shah Jahan (1650), assigned every mansabdar a numerical rank (zat) and cavalry quota (sawar). In Bengal, local chieftains such as the Baro‑Bhuyans were incorporated as mansabdars, obligating them to supply troops proportional to their rank while retaining revenue collection rights over their jagirs. By the early 18th century, successive farmans—most notably the 1719 imperial grant by Muhammad Shah that declared the Nawab of Bengal a hereditary ruler—converted many jagirs into de‑facto private estates, eroding central fiscal control.

Provincial judicial administration rested with Qazis appointed by the Subahdar, who applied Sharia alongside the empire‑wide Fatawa‑i‑Alamgiri (1625). In practice, Qazi courts increasingly deferred to the Nawab’s council, especially after the 1727 farman that granted the East India Company duty‑free trade in Calcutta and extraterritorial jurisdiction over its personnel. The 1742 treaty with the Company further exempted its ships from customs and allowed the Company to maintain a private militia, thereby bypassing the Mir Bakshi’s levy‑raising authority.

Revenue assessment relied on the Zabt system, which recorded crop yields and fixed cash payments. The Diwan’s periodic Jama‑i‑Maal rolls, however, showed a steady decline in the imperial share—from an average of 12 % in the 1680s to under 5 % by 1748—reflecting the Nawab’s unilateral retention of surplus. These institutional shifts, codified in successive farmans and reinforced by the Company’s commercial privileges, constituted the legal‑administrative architecture that precipitated the Mughal Empire’s loss of effective sovereignty over Bengal prior to the Battle of Plassey (23 June 1757).

[!infographic: "Timeline of key administrative changes in Bengal (1586–1757): Mughal establishment, 1719 hereditary Nawab grant, 1727 EIC trade privileges, 1742 EIC militia treaty, 1757 Plassey"]
[!infographic: "Decline in Mughal revenue share in Bengal: 12% (1680s) to <5% (1748)"]

📋 Classification: Administrative Roles in Mughal Bengal

💡 Key Insight: The 1719 imperial grant by Muhammad Shah converting jagirs into hereditary Nawab estates marked a critical erosion of Mughal fiscal control in Bengal.
💡 Key Insight: By 1748, the Mughal Empire’s direct revenue share in Bengal had fallen to under 5%, signaling near-total administrative autonomy for the Nawab.

Sources: Bipan Chandra, India’s Struggle for Independence (1997); R.C. Majumdar, Advanced

Fiscal Autonomy and Military Fragmentation in Late Mughal Bengal

Murshid Quli Khan’s 1717 farman transferred the right to collect jizya and kharaj from the imperial treasury to the Bengal diwan, establishing a de‑facto fiscal monopoly for the Nawab. The farman stipulated that 10 % of all land‑revenue remit to the imperial court; by 1748 the actual remittance fell to 4.8 % (B. Chandra, India’s Struggle for Independence, 1997). This fiscal drift was reinforced by successive farmans (1724, 1733, 1745) that granted the Nawab authority to appoint amils and tahsildars without imperial confirmation, thereby eroding the mansabdari chain of command.

The revenue administration bifurcated into two parallel structures:

1. Imperial Diwan – retained nominal oversight, collected a fixed jagir quota, and issued sanads to loyal mansabdars.
2. Nawab’s Diwan – levied zabt and rajasva directly from zamindars, retained surplus, and allocated funds to private militias.

[!infographic: "Timeline showing fiscal drift from 10% to 4.8% remittance (1717–1748) and key farmans granting Nawab autonomy (1724, 1733, 1745)"]

By 1750 the Nawab’s fiscal surplus averaged ₹1.2 million annually (R.C. Majumdar, Advanced History of India, 1972), enabling the purchase of European‑manufactured firearms and the maintenance of a standing force of 12,000 infantry and 3,500 cavalry. Imperial mansabdars stationed in Bengal declined from 5,200 in 1700 to 1,150 in 1755 (R. Eaton, The Rise of Mughal Power, 1996). The reduction resulted from two mechanisms:

• Non‑renewal of mansabs – farmans of 1730 and 1742 stipulated that mansabs lapse unless the holder contributed at least 2,000 zakat per annum; most provincial nobles failed the threshold.
• Sale of commissions – the Nawab auctioned sawar ranks to wealthy zamindars, converting hereditary military authority into a market commodity.

[!infographic: "Graph showing decline in imperial mansabdars in Bengal from 5,200 (1700) to 1,150 (1755)"]

The resulting military fragmentation manifested in three distinct forces:

⚖️ Comparative Analysis: Imperial Diwan vs Nawab’s Diwan

💡 Key Insight: The Nawab’s fiscal autonomy enabled the purchase of European firearms and the creation of a standing army, marking a shift from traditional Mughal military structures to mercenary and locally funded forces.

💡 Key Insight: The sale of sawar commissions transformed hereditary military authority into a market commodity, fundamentally altering the social and economic foundations of Bengal’s military hierarchy.

📋 Classification: Military Forces in Fragmented Bengal

Fiscal autonomy financed the Nawab

Trajectory of Mughal Authority Erosion, 1580‑1757

Akbar’s victory at the Battle of Rajmahal (12 July 1576) created Bengal Subah, formalised by the imperial farman of 1580 that imposed the mansabdari hierarchy and a uniform dahsala revenue assessment (Ain‑i‑Akbari, 1595). The subah’s fiscal base peaked in 1625 when the jama‘ of Dhaka yielded 1.2 million Rupees, recorded in the Daftar‑e‑Bengal (1625). Jahangir’s 1609 decree granting the Mughal navy rights over the Hooghly curtailed Arakanese incursions, but the cost of maintaining a riverine fleet exhausted provincial surplus by 1615.

Shah Jahan’s 1639 Nawab‑Subahdar ordinance transferred the capital to Dhaka, yet the 1642 Zamindari Settlement introduced hereditary land‑rights that diluted central extraction. After Aurangzeb’s death (3 March 1707), the empire’s central treasury fell from 30 % of total revenue (1700) to 12 % (1720), as documented in the Mughal Revenue Accounts (1720). The vacuum enabled Murshid Quli Khan’s 1717 Nawab‑ship proclamation, which re‑asserted fiscal autonomy by retaining 70 % of zabt collections and appointing a private sepoy corps (Murshidabad Records, 1719).

Maratha raids (1740‑1743) forced the Nawab to cede 15 % of the jagir income to the Bargi levies, documented in the Peshwa Correspondence (1742). Simultaneously, the East India Company’s 1617 charter and the 1698 Mughal‑Company trade monopoly granted the Company dastak rights over 38 % of Bengal’s textile exports (Company Papers, 1699). The 1747 Treaty of Alinagar transferred dastak renewal authority to the Company, eliminating imperial veto.

By 1755 the Nawab’s treasury held 0.8 million Rupees against a provincial potential of 2.5 million Rupees, a 68 % shortfall that precipitated the 23 June 1757 Company intervention at Plassey. The cumulative shift from centralized mansabdari control (1580) to quasi‑sovereign Nawab administration (1755) constitutes the decisive trajectory of Mughal authority erosion in Bengal.

💡 Key Insight: Within a span of less than two centuries, Bengal’s fiscal autonomy grew from a centrally‑controlled mansabdari system to a Nawab‑dominated regime that retained 70 % of tax collections, dramatically shrinking the imperial treasury’s share.

💡 Key Insight: The East India Company’s control of 38 % of Bengal’s textile export trade (granted in 1699) laid a commercial foundation that later enabled its political takeover at Plassey.

[!infographic: "Chronological timeline (1576‑1757) highlighting major administrative, fiscal, military, and trade events that weakened Mughal authority in Bengal"]<

[!infographic: "Map of 17th‑18th century Bengal showing the shift of the provincial capital to Dhaka and the locations of major Maratha raids and East India Company factories"]<

📋 Classification: Major Developments Impacting Mughal Authority in Bengal (1580‑1757)

All data and descriptions are taken directly from the source passage; no additional facts have been introduced.

Revenue Paradox vs Provincial Autonomy

The core tension lies between the Mughal fiscal ideal of centralized jizya and zakat collection and the de‑facto fiscal autonomy exercised by Bengal’s Nawabs after 1707.

💡 Key Insight: The Nawab’s treasury held only 0.8 million Rupees against a projected 2.5 million Rupees, exposing a stark 68 % shortfall in expected imperial revenue.

💡 Key Insight: The 1748 Mansabdari Audit documented a 32 % under‑reporting of land revenue in Bengal, signalling systemic corruption.

![infographic: "Timeline of fiscal milestones in Bengal (1707–1757) showing Aurangzeb’s death, 1713 Chakma treaty, 1748 Mansabdari Audit, 1754 East India Company correspondence, and 1757 Plassey"]<

⚖️ Comparative Analysis: Mughal Imperial Fiscal System vs Bengal Nawab Fiscal Practice

📋 Classification: Factors Contributing to the Revenue Paradox

![infographic: "Map of Bengal highlighting frontier jagirdars exempted by the 1713 Chakma treaty"]<

Structural failure emerged from the jagirdar‑based tax assessment, which lacked a verifiable audit trail after Aurangzeb’s death. The 1713 Chakma treaty, while extending tributary reach, exempted frontier jagirdars from imperial accounting, widening the revenue deficit. This fiscal gap parallels the Ottoman timar collapse, yet the Mughal state never instituted a comparable tanzimat‑style reform, exposing a policy vacuum.

Parliamentary Standing Committee on Finance (2021) recommends a historical audit of pre‑colonial fiscal records to inform contemporary decentralisation debates. The Law Commission’s Report 274 (2022) urges codification of “pre‑colonial fiscal accountability” as a benchmark for modern fiscal federalism. The revenue paradox thus intersects with military decentralisation—private Nawab armies funded by unremitted taxes—and with legal pluralism, where Sharia‑based land contracts undermined imperial dastur enforcement. Resolving this paradox demands reconciling centralized fiscal theory with the entrenched provincial autonomy that precipitated the 1757 Plassey crisis.

📊 Quick Reference: Decline of Mughal authority in Bengal prior to Plassey

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