18th Century India Notes for UPSC: Decline of the Mughal Empire, Rise of Regional States, Anglo-French Rivalry, Plassey, Buxar and Anglo-Mysore Wars Explained

The 18th century is the bridge between medieval and modern India. In 1707 the Mughal Emperor Aurangzeb died, and within a few decades the great empire broke into many regional states. In the same century, the English East India Company moved from being a trading company to the ruler of Bengal and the main power in India. For UPSC, this chapter is important for causes of the Mughal decline, regional states, Anglo-French rivalry, the battles of Plassey and Buxar and the early Anglo-Mysore and Anglo-Maratha conflicts. These notes cover each part in a simple order with timelines, tables and memory tips.

Why This Chapter Matters for UPSC

The 18th century question is a favourite of both the Prelims (match the following, chronology) and the Mains (GS I: "Why did the Mughal empire decline?", "How did the British establish their rule?"). It also explains the background of the revolt of 1857 and the colonial economy. Read it with our notes on the Mughal Empire and the Revolt of 1857.

Timeline of Key Events

Causes of the Decline of the Mughal Empire

• Weak successors. After Aurangzeb, the emperors were weak and were controlled by powerful nobles. Wars of succession caused further damage. In the period of Farrukhsiyar, the Sayyid brothers acted as "kingmakers".
• Deccan campaigns of Aurangzeb. The long wars in the Deccan drained the treasury and the army, and gave rise to the Maratha challenge.
• Crisis of the jagirdari system. There were too many nobles for too few jagirs, which led to the corruption and the pressure on the peasants.
• Agrarian crisis. Heavy taxation led to the revolts of the Jats, the Satnamis and the Sikhs.
• Invasions. Nadir Shah (1739) and Ahmad Shah Abdali (several times from 1748) looted Delhi and destroyed the prestige of the empire.
• Rise of regional states. The governors of the provinces became almost independent.
• Foreign companies. The Europeans took advantage of the weakness through their naval power and modern arms.

Successor and Independent States

The Maratha Power in the 18th Century

The Peshwas, the hereditary ministers of the Chhatrapati, became the real rulers of the Maratha state. Balaji Vishwanath secured the right of chauth and sardeshmukhi for the Marathas from the Mughals. Baji Rao I expanded the Maratha power in the north. The Marathas became the largest power in India for a time, but the defeat at the Third Battle of Panipat (1761) by Ahmad Shah Abdali shattered their ambition of ruling all India. The Maratha state broke into a confederacy of the Peshwa, the Sindhia, the Holkar, the Gaekwad and the Bhonsle, which the English later defeated one by one in the three Anglo-Maratha wars (1775 to 1818).

European Companies in India

Anglo-French Rivalry: The Carnatic Wars

The French governor Dupleix and the English leader Robert Clive fought three wars in the Carnatic region (1746 to 1763). The French used the Indian rulers' quarrels to build influence, but the English won through the sea power, the better finances and the support of Bengal's wealth. The decisive Battle of Wandiwash (1760) was won by Eyre Coote against the French general Lally. After the Treaty of Paris (1763), the French were left only with a few trading posts and the English became the dominant European power.

Plassey and Buxar: The Foundation of the Company Rule

In the Battle of Plassey (1757), Robert Clive defeated the Nawab Siraj-ud-Daula because of the treachery of Mir Jafar, his commander, and the support of the bankers like Jagat Seth. Mir Jafar became the Nawab, and the Company got huge wealth and the control of Bengal's trade. When Mir Qasim tried to be independent, he was defeated in the Battle of Buxar (1764) together with Shuja-ud-Daula of Awadh and the Mughal emperor Shah Alam II. Buxar was more decisive than Plassey as it was a real contest of arms. By the Treaty of Allahabad (1765), Robert Clive got the Diwani (the right to collect revenue) of Bengal, Bihar and Odisha for the Company, which started the dual government of Bengal (1765 to 1772), in which the Company had the power without the responsibility.

The Anglo-Mysore Wars

• First (1767 to 1769): Haidar Ali forced the English to sign the Treaty of Madras.
• Second (1780 to 1784): Ended with the Treaty of Mangalore, after Haidar Ali died in 1782 and Tipu continued.
• Third (1790 to 1792): Cornwallis defeated Tipu, and the Treaty of Seringapatam took half of his territory.
• Fourth (1799): Wellesley's army defeated Tipu, who died defending Seringapatam.

Society and Economy in the 18th Century

The period saw political chaos but not a complete economic collapse. Regional states supported the trade, crafts and culture, and new centres such as Lucknow, Murshidabad and Hyderabad grew as the places of art and literature. Urdu poetry flourished, and the Pahari and Awadh schools of painting developed. At the same time, the peasants suffered because of the heavy revenue demands, and the foreign trade was increasingly controlled by the Europeans.

The Mains Angle: Why Did the British Succeed?

A good GS I answer on this topic covers four points. First, the political fragmentation of India meant that no single power could stop the Company. Second, the military and financial strength of the Company: a disciplined army, naval power, better artillery and the support of the London money market and the Bengal revenues. Third, the diplomacy and the divide among the Indian rulers, as the English used the rivalry of the Nizam, the Marathas and Mysore, and the treachery of nobles such as Mir Jafar. Fourth, the economic base: after Plassey, the wealth of Bengal paid for the wars of conquest, which was called the "drain" by the later nationalists. End the answer by saying that the British success was not inevitable but was the result of the Indian weakness and the Company's strengths, which is the balanced view that UPSC likes.

Previous-Year Style Questions

• Which battle gave the Company the Diwani of Bengal in effect? Answer: The Battle of Buxar (1764), followed by the Treaty of Allahabad (1765).
• Who defeated the Marathas at Panipat in 1761? Answer: Ahmad Shah Abdali.
• Which Mysore ruler used rockets against the British? Answer: Haidar Ali and Tipu Sultan.
• Which treaty ended the Third Anglo-Mysore War? Answer: The Treaty of Seringapatam (1792).

Common Mistakes to Avoid

• Saying that Plassey ended the Mughal rule. The Mughals continued in name until 1857.
• Mixing the Treaty of Allahabad (1765) with the Allahabad Pact of other years.
• Confusing the Carnatic Wars with the Anglo-Mysore Wars.
• Forgetting that the Nizam of Hyderabad and the Nawab of Awadh were successor states of the Mughal empire.
• Ignoring the role of the Indian bankers and the nobles in the English victory.

Quick Revision Points

• Plassey was a victory by the conspiracy, and Buxar by the arms.
• The Diwani right of 1765 made the Company the master of the revenue of Bengal.
• Panipat 1761 destroyed the all-India ambitions of the Marathas.
• Mysore was the only power with a modern army and French help, and it was the last to fall to the English in the south.

Frequently Asked Questions (FAQ)

When did the decline of the Mughal Empire begin?

The decline began after the death of Aurangzeb in 1707.

Who invaded India in 1739?

Nadir Shah of Persia invaded in 1739 and took the Peacock Throne and the Kohinoor.

What was the result of the Battle of Plassey?

The English under Clive defeated Siraj-ud-Daula in 1757, and Mir Jafar was made the Nawab of Bengal.

Why was Buxar more important than Plassey?

Because it was a real military victory over three powers, which gave the English political authority in north India.

What did the Treaty of Allahabad (1765) give to the Company?

The Diwani, the right to collect revenue, of Bengal, Bihar and Odisha.

Who founded the state of Hyderabad?

Nizam-ul-Mulk Asaf Jah I founded it in 1724.

Who fought in the Third Battle of Panipat?

The Marathas and Ahmad Shah Abdali fought in 1761, and the Marathas were defeated.

Which Mysore ruler died in 1799?

Tipu Sultan died in the fourth Anglo-Mysore War at Seringapatam.

Who won the Battle of Wandiwash?

The English general Eyre Coote defeated the French general Lally in 1760.

What was dual government in Bengal?

A system from 1765 to 1772 in which the Company controlled the revenue and the Nawab had the administration.

Which European power came to India first?

The Portuguese came first, with Vasco da Gama reaching Calicut in 1498.

How is this chapter asked in UPSC?

As chronology, match-the-following and the causes of the decline of the Mughals and the rise of the British.