Battle of Buxar

The Battle of Buxar was fought between 22 and 23 October 1764, between the forces of the British East India Company, under the command of Major Hector Munro, and the combined armies of Balwant Singh, Maharaja of the Banaras State; Mir Qasim, Nawab of Bengal; Shuja-ud-Daula, Nawab of Awadh; and Shah Alam II, Emperor of the Mughal Empire.

The battle was fought at Buxar, a "strong fortified town" within the territory of Bihar, located on the banks of the Ganges river about 130 km west of Patna; it was a challenging victory for the British East India Company. The war was brought to an end by the Treaty of Allahabad in 1765. The defeated Indian rulers were forced to sign the treaty, granting the East India Company Diwani rights, which allowed them to collect revenue from the territories of Bengal, Bihar, and Orissa on behalf of the Mughal emperor.

Battle
The British engaged in the fighting numbered 17,072 comprising 1,859 British regulars, 5,297 Indian sepoys and 9,189 Indian cavalry. The alliance army's numbers were estimated to be over 40,000. was defeated by a British army comprising 7,000 men. A lack of basic co-ordination among these three disparate allies was responsible for their decisive defeat.

Mirza Najaf Khan commanded the right flank of the Mughal imperial army and was the first to advance his forces against Major Hector Munro at daybreak; the British lines formed within twenty minutes and reversed the advance of the Mughals. According to the British, Durrani and Rohilla cavalry were also present and fought during the battle in various skirmishes. But by midday, the battle was over and Shuja-ud-Daula blew up large tumbrils and three massive magazines of gunpowder.

Munro divided his army into various columns and particularly pursued the Mughal Grand Vizier Shuja-ud-Daula the Nawab of Awadh who responded by blowing up his boat-bridge after crossing the river, thus abandoning the Mughal Emperor Shah Alam II and members of his own regiment. Mir Qasim also fled with his 3 million rupees worth of gemstones and later died in poverty in 1777. Mirza Najaf Khan reorganised formations around Shah Alam II, who retreated and then chose to negotiate with the victorious British.

The historian John William Fortescue claimed that the British casualties totalled 847: 39 killed and 64 wounded from the European regiments and 250 killed, 435 wounded and 85 missing from the East India Company's sepoys. He also claimed that the three Indian allies suffered 2,000 dead and that many more were wounded. Another source says that there were 69 European and 664 sepoy casualties on the British side and 6,000 casualties on the Mughal side. The victors captured 133 pieces of artillery and over 1 million rupees of cash. Immediately after the battle, Munro decided to assist the Marathas, who were described as a "warlike race", well known for their relentless rivalry and unwavering hatred towards Mughal Empire, Durrani Empire, Rohilla Chieftaincies, different Nawabs of the subcontinent (most notably, Nawab of Bengal and Nawab of Awadh), Nizam of Hyderabad and short lived Sultanate of Mysore.

According to one brigadier-general H. Biddulph, "the European infantry was composed of the Bengal European Battalion, two weak companies of the Bombay European Battalion, and small detachments of Marines and of H.M. 84th, 89th and 96th Regiments. The only officers killed were Lt. Francis Spilsbury of the 96th Foot and Ensign Richard Thompson of the Bengal European Battalion."

Aftermath
The Battle of Buxar had far-reaching consequences that reshaped the political landscape of colonial India. Its aftermath witnessed significant shifts in power dynamics and set the stage for British dominance in the Bengal region. Following their victory over the combined forces of the Nawab of Bengal, the Nawab of Awadh, and the Mughal Emperor—the three main scions—the British East India Company emerged as the preeminent power in Bengal. The battle was the beginning of the end for the Mughal Empire's political control, as the Company continued to consolidate its influence over vast territories. However, this rise to power came with various challenges, especially from the zamindars of Bihar.

Mir Qasim disappeared into impoverished obscurity. Shah Alam II surrendered himself to the British, and Shuja-ud-Daula fled west hotly pursued by the victors. The whole Ganges valley lay at the company's mercy; Shuja-ud-Daula eventually surrendered. In 1765, the British East India Company was granted the right to collect taxes from Bengal-Bihar. Eventually, in 1772, the East India company abolished local rule and took complete control of the province of Bengal-Bihar. The battle exposed the inherent weaknesses and divisions among the Indian rulers. The lack of unity and coordination between the Nawabs and the Mughal Emperor made it easier for the British to defeat them. This further exacerbated the fragmentation of political power in India and paved the way for British rule on the subcontinent.