Bihar (; Hindi pronunciation: [bɪˈɦaːr] (listen)) is a state in eastern India. It is the third-largest state by population and twelfth-largest by territory, with an area of 94,163 km2 (36,357 sq mi). Bihar borders Uttar Pradesh to its west, Nepal to the north, the northern part of West Bengal to the east, and with Jharkhand to the south. The Bihar plain is split by the river Ganges, which flows from west to east. Bihar is also the world's fourth-most populous subnational entity.On 15 November 2000, southern Bihar was ceded to form the new state of Jharkhand. Only 11.3% of the population of Bihar lives in urban areas, which is the lowest in India after Himachal Pradesh. Additionally, almost 58% of Biharis are below the age of 25, giving Bihar the highest proportion of young people of any Indian state. The official languages are Hindi and Urdu, although other languages are common, including Maithili, Magahi, Bhojpuri and other Languages of Bihar. In Ancient and Classical India, the area that is now Bihar was considered the centre of political and cultural power and as a haven of learning From Magadha arose India's first empire, the Maurya empire, as well as one of the world's most widely adhered-to religions: Buddhism. Magadha empires, notably under the Maurya and Gupta dynasties, unified large parts of South Asia under a central rule. Another region of Bihar is Mithila which was an early centre of learning and the centre of the Videha kingdom.However, since the late 1970s, Bihar has lagged far behind other Indian states in terms of social and economic development. It's gained a highly negative reputation among the denizens of India to a degree where being called 'Bihari' is an insult. Many economists and social scientists claim that this is a direct result of the policies of the central government, such as the freight equalisation policy, its apathy towards Bihar, lack of Bihari sub-nationalism, and the Permanent Settlement of 1793 by the British East India Company. The state government has, however, made significant strides in developing the state. Improved governance has led to an economic revival in the state through increased investment in infrastructure, better healthcare facilities, greater emphasis on education, and a reduction in crime and corruption.

Kanpur or Cawnpore (/kɑːnˈpʊər/ pronunciation (help·info)) is an industrial city in the central-western part of the state of Uttar Pradesh, India. Founded in 1207, Kanpur became one of the most important commercial and military stations of British India. Kanpur is also the financial capital of Uttar Pradesh. Nestled on the banks of Ganges River, Kanpur stands as the major financial and industrial centre of North India and also the ninth-largest urban economy in India. Today it is famous for its colonial architecture, gardens, parks and fine quality leather and textile products which are exported mainly to the West.It is the 12th most populous city and the 11th most populous urban agglomeration in India. Kanpur was an important British garrison town until 1947, when India gained independence. The urban district of Kanpur Nagar serves as the headquarters of the Kanpur Division, Kanpur Range and Kanpur Zone. With the first woollen mill of India, commonly known as the Lal Imli (literally meaning "Red Tamarind", for a brand produced by the mill) by the British India Corporation established here in 1876 by Alexander MacRobert. The eastern and northern facades of the mill are reminiscent of the Palace of Westminster, due to their architecture, proximity to the Ganges river and with the north-east corner of the mill being topped by a clock tower similar to Big Ben in London. This similarity underscores the city's importance and prestige during the British times, which extends till date; making the Lal Imli — a great highlight of the city. The city is also widely regarded as the "Leather City of the World" and is predominantly nicknamed as the "Manchester of the East", for its textile industries. According to 2011 Indian census, it is the eleventh most populous urban city and the largest urban agglomeration in Uttar Pradesh while the population of city and its suburb were around 5 million making it the eighth-most populous metropolitan area in India. Furthermore, it is considered the world's most polluted city by particulate matter concentration. In 2018, Kanpur was considered by the World Health Organization as the city with the world's worst air pollution.