Indian Rebellion: An eight-day siege of a fortified outbuilding in Arrah occupied by 68 defenders against more than 10,000 men ended when a relief party dispersed the besiegers.

The Indian Rebellion of 1857 was a major uprising in India in 1857–58 against the rule of the British East India Company, which functioned as a sovereign power on behalf of the British Crown. The rebellion began on 10 May 1857 in the form of a mutiny of sepoys of the company's army in the garrison town of Meerut, 40 miles (64 km) northeast of Delhi. It then erupted into other mutinies and civilian rebellions chiefly in the upper Gangetic plain and central India, though incidents of revolt also occurred farther north and east. The rebellion posed a military threat to British power in that region, and was contained only with the rebels' defeat in Gwalior on 20 June 1858. On 1 November 1858, the British granted amnesty to all rebels not involved in murder, though they did not declare the hostilities to have formally ended until 8 July 1859.

The siege of Arrah took place during the Indian Mutiny. It was the eight-day defence of a fortified outbuilding, occupied by a combination of 18 civilians and 50 members of the Bengal Military Police Battalion, against 2,500 to 3,000 mutinying Bengal Native Infantry sepoys from three regiments and an estimated 8,000 men from irregular forces commanded by Kunwar Singh, the local zamindar or chieftain who controlled the Jagdishpur estate.

Arrah is a city and a municipal corporation in Bhojpur district in the Indian state of Bihar. During the British Raj, it served as the administrative headquarters and was considered the most populous urban centre of the historical Shahabad district. It is the headquarters of Bhojpur district, located near the confluence of the Ganges and Sone rivers, some 24 miles (39 km) from Danapur and 36 miles (58 km) from Patna.